Please click here to check who's online and chat with them.

Find Verified L Tryptophan(Cas:73 22 3) Suppliers, Manufacturers and Wholesalers

GOLD Member
VERIFIED
Jun-22-22

L-Tryptophan Powder, Cas No.73-22-3

$5.75
MOQ: 1000  Kilograms
Sample Available
 
L-Tryptophan powder, CAS No.73-22-3, essential amino acid manufactured by fermentation from carbohydrate sources, free of materials of animal origin. Uses: L-Tryptophan uses in food, protein powder, skin care cosmetics, drinks as supplement. L-tryptophan is used as an active ingredient in antidepressant therapy. Other uses of L-tryptophan include weight loss and reduction of PMS. Function: plays a key role in balancing sleep and mood patterns.

As an experienced L-Tryptophan manufacturer and supplier, we has been supplying and exporting L-Tryptophan for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

L-Tryptophan Specification
ITEMS STANDARDs
Appearance White crystals or crystalline powder
Assay 98% Min
Specific Rotation -29.0~ -32.3
Loss on Drying 0.5% Max
Heavy Metals 20mg/kg Max
Arsenic(As2O3) 2mg/kg Max
Residue on ignition 0.5% Max
May-29-24
Supplier From Xiamen, Fujian, China
 
L-Tryptophan(CAS:73-22-3)
GOLD Member
VERIFIED
Jul-05-25

L-Tryptophan, A

$1 - $1 / Metric Ton (CIF)
MOQ: 25000  Kilograms
 
L-Tryptophan is a nutritionally essential amino acid for monogastric animals and preweaning ruminants because it cannot be synthesized in the body.
It is naturally found in red meat, poultry, eggs, and dairy. L-tryptophan is important for many organs in the body.
GOLD Member
VERIFIED
Jul-30-22
 
Price: Depend On Quantity
Specification: 99%
Brand Name : Chemcohealth
Place Of Origin : China
Moq : 10kgs
Color : White
GOLD Member
VERIFIED
Jun-22-22
 
L-Isoleucine powder, CAS No.73-32-5, an isomer of L-Leucine, essential amino acid manufactured by fermentation from carbohydrate sources. No raw materials of animal origin are used in the production process. It is one of the branched chain amino acids (L-isoleucine, L-valine, and L-leucine).

As an experienced L-Isoleucine manufacturer and supplier, we has been supplying and exporting L-Isoleucine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

L-Isoleucine Specification
ITEM STANDARD
Appearance White crystals or crystalline Powder
Specific rotation +38.6-+41.5
PH 5.5-7.0
Loss on drying â?¤0.3%
Heavy metals(Pb)20ppm
Content 98.5~101.0%
Iron(Fe) 20ppm
Arsenic(As2O3) 1ppm
Lead10ppm
Other Amino Acids Chromatographically not detectable
Residue on ignition (Sulfated) 0.2%
Organic Volatile impurities
22000 L Tryptophan(Cas:73 22 3) Suppliers
Short on time? Let L Tryptophan(Cas:73 22 3) sellers contact you.
GOLD Member
VERIFIED
Jun-22-22

L-Cystine Powder, Cas No.56-89-3

$13
MOQ: 1000  Kilograms
Sample Available
 
L-Cystine powder, CAS No.56-89-3, formed by the oxidation of two cysteine molecules, a non-essential amino acid. It is used as a component for parenteral and enteral nutrition and the main active ingredient for medications used to treat dermatitis. Cystine along with the amino acid methionine are the amino-acids necessary for wound healing and forming of epithelial tissue. Cystine is known to stimulate the hematopoietic system and promote the formation of white and red blood cells.

As an experienced L-Cystine manufacturer and supplier, we has been supplying and exporting L-Cystine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

Product Description
Categories Amino Acids
Qty in 20 FCL 18000kg
Min Order 500kg
Origin China
Packaging Factory Packaging or Neutral
Certificate ISO, Kosher, Halal, BRC
CAS No. 56-89-3
HS Code 293090
Specification Feed/Food Grade

L-Cystine Specification
Item STANDARD
Specific rotatory power[±] D20 -215 -225
Clarity 98.0%
Ammonium salt[NH4] 0.02%
Chloride[CL] 0.02%
Residue on ignition 0.10%
Sulfate[SO4] 0.02%
Iron salt[Fe] 10 ppm
Heavy metal[Pb] 10 ppm
Arsenic salt 1 ppm
Other amino acid Color layer can not be checked out.
Loss on drying 0.20%
Content 98.5 -101.0%
GOLD Member
VERIFIED
Jun-22-22

L-Proline Powder, Cas No.147-85-3

$10
MOQ: 1000  Kilograms
Sample Available
 
L-Arginine powder, CAS No.74-79-3, non essential amino acid manufactured manufactured by fermentation from carbohydrate sources. L-Arginine is widely used in food, protein powder, skin care cosmetics. Use as Fragrance Ingredient; Hair Conditioning Agent; Skin-Conditioning Agent Miscellaneous; Antistatic, masking, skin conditioning. L-arginine also used as nutrition supplements by athletes to recover from fatigue. Arginine Function: can lower risk for arteriosclerosis and heart attack and repairing blood vessels.

As an experienced L-Arginine manufacturer and supplier, we has been supplying and exporting L-Arginine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

L-Arginine Specification
Item Specifications (USP) Specifications (AJI)
Description White crystals or crystalline powder White crystals or crystalline powder
Identification Infrared absorption spectrum Infrared absorption spectrum
Specific rotation[a]D20 +26.3 - +27.7 +26.9 - +27.9
State of solution/Transmittance 98.0%
Chloride (Cl) 0.05% 0.020%
Ammonium (NH4) 0.02%
Sulfate (SO4) 0.03% 0.020%
Iron (Fe) 0.003% 10PPm
Heavy metals (Pb) 0.0015% 10PPm
Arsenic (As2O3) 1PPm
Other amino acids Chromatographically not detectable
Loss on drying 0.5% 0.5%
Residue on ignition(sulfated) 0.3% 0.10%
Assay 98.5-101.5% 99.0-101.0%
PH 10.5-12.0
Organic volatile impurities Meets the requirements
GOLD Member
VERIFIED
Jun-22-22

L-Arginine Powder, Cas No.74-79-3

$4.95
MOQ: 1000  Kilograms
Sample Available
 
L-Arginine powder, CAS No.74-79-3, non essential amino acid manufactured manufactured by fermentation from carbohydrate sources. L-Arginine is widely used in food, protein powder, skin care cosmetics. Use as Fragrance Ingredient; Hair Conditioning Agent; Skin-Conditioning Agent Miscellaneous; Antistatic, masking, skin conditioning. L-arginine also used as nutrition supplements by athletes to recover from fatigue. Arginine Function: can lower risk for arteriosclerosis and heart attack and repairing blood vessels.

As an experienced L-Arginine manufacturer and supplier, we has been supplying and exporting L-Arginine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

L-Arginine Specification
Item Specifications (USP) Specifications (AJI)
Description White crystals or crystalline powder White crystals or crystalline powder
Identification Infrared absorption spectrum Infrared absorption spectrum
Specific rotation[a]D20 +26.3 - +27.7 +26.9 - +27.9
State of solution/Transmittance 98.0%
Chloride (Cl) 0.05% 0.020%
Ammonium (NH4) 0.02%
Sulfate (SO4) 0.03% 0.020%
Iron (Fe) 0.003% 10PPm
Heavy metals (Pb) 0.0015% 10PPm
Arsenic (As2O3) 1PPm
Other amino acids Chromatographically not detectable
Loss on drying 0.5% 0.5%
Residue on ignition(sulfated) 0.3% 0.10%
Assay 98.5-101.5% 99.0-101.0%
PH 10.5-12.0
Organic volatile impurities Meets the requirements
GOLD Member
VERIFIED
Jun-24-22

Epsilon-Poly-L-Lysine, Cas No.28211-04-3

$50
MOQ: 1000  Kilograms
Sample Available
 
Epsilon-Poly-L-Lysine, also called Polylysine, CAS No.28211-04-3, is manufactured by fermentation process. It is widely used as food preservative. -Polylysine can inhibit the growth of Gram-positive and Gram-negative bacteria, yeasts, moulds, bacteria. Polylysine can be used in cooked rice, cakes, snacks, noodles, drinks, brewing, meat products, canned food, etc.

As an experienced Epsilon-Poly-L-Lysine manufacturer and supplier, we has been supplying and exporting Epsilon-Poly-L-Lysine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

Epsilon-Poly-L-Lysine powder Specification
ITEM STANDARD
Description Pale yellow powder
�µ-Polylysine Purity 95%
Loss on drying 10%
Residue on ignition 1%
Heavy metals 20ppm
Arsenic 4ppm
GOLD Member
VERIFIED
Jun-22-22

L-Lysine Sulfate 65%/70%, Cas No.60343-69-3

$0.35
MOQ: 1000  Kilograms
Sample Available
 
L-Lysine Sulfate 65%/70%, CAS No.60343-69-3, a brown granule, feed grade. L-Lysine is a necessary building block for all protein in the body. As a nutrition supplements, L-Lysine Sulfate used in food production, beverage, pharmaceutical, agriculture/animal feed. L-Lysine Sulphate 65%, equal to 65% lysine HCl, could provide 51% free lysine in the feed. It has already been proven that L-Lysine Sulphate has almost the same feed effects L-Lysine HCl.

As an experienced L-Lysine Sulfate manufacturer and supplier, we has been supplying and exporting L-Lysine Sulfate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day.

L-Lysine Sulfate Specification
ITEMS Specification
Appearance Light brown granule
Identity Corresponds
Assay (L-lysine, On Dry Basis) 51%
Assay (L-lysine HCl, On Dry Basis) 65%
Sulfate Pass Test
Loss On Drying 4%
Residue On Ignition 4%
Ammonium salt (as NH4) 1%
Heavy Metals (as Pb) mg/kg 20
Arsenic mg/kg 3
PH ( 0.3g+50ml water 25C ) 3.0-5.0
GOLD Member
Nov-30-20
 
10pcs/bag, 50pcs/box, 2000pcs/carton, carton size 51.5*39.2*42cm
N.w:6.12kgs
G.W:8.53KGS
Weight - 20+22+25gsm

Material
25g non-woven+ 25g non-woven + 25g Meltbrown Fabric+ 25g non-woven

Usage
Hospital, clinic, laboratory, dentist, daily use, sanding, sanding, cleaning, sawing, bagging, or other

Ply Type - 3 Ply/4 Ply

Colour - white/green/blue/yellow/black etc.

BFE >95&99%
Jan-03-19

L-Tryptophan 73-22-3

$7.50
MOQ: Not Specified
Supplier From Zhengzhou, China
 
Human: nutritional supplement, antioxidant. Tryptophane is the precursor of 5-hydroxytryptamine which is an important neurotransmitter of human body; it is also one of human essential amino acids; it is applied in nutrition supplements for pregnant woman and infant specific milk power; it is used as a curative of aniacinosis (pellagra); it's used as a tranquilizer to adjust energetic rhythm and improve sleeping. .
GOLD Member
Aug-06-22

2 - Naphthol

$2.30K
MOQ: Not Specified
 
2-Naphthol Basic information
Chemical Properties Application Preparation
Product Name: 2-Naphthol
Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams
CAS: 135-19-3
MF: C10H8O
MW: 144.17
EINECS: 205-182-7
Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics
Mol File: 135-19-3.mol


2-Naphthol Chemical Properties
Melting point 120-122 C(lit.)
Boiling point 285-286 C(lit.)
density 1,28 g/cm3
vapor density 4.97 (vs air)
vapor pressure 10 mm Hg ( 145.5 C)
refractive index 1.5762 (estimate)
Fp 153 C
storage temp. Refrigerator
solubility methanol: soluble1g/10 mL, clear, colorless to light yellow
pka 9.51(at 25C)
form Powder, Crystals or Granules
color White
PH Range Non& uorescence (8.5) to blue & uorescence (9.5)
Water Solubility 1 g/L (20 C)
�»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm
Merck 14,6384
BRN 742134
Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol.
Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders
InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N
CAS DataBase Reference 135-19-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthalenol(135-19-3)
EPA Substance Registry System 2-Naphthalenol (135-19-3)

Safety Information
Hazard Codes Xn,N
Risk Statements 20/22-50
Safety Statements 24/25-61
RIDADR UN 3077 9/PG 3
WGK Germany 2
RTECS QL2975000
F 8
Autoignition Temperature 430 C
TSCA Yes
HazardClass 9
PackingGroup III
HS Code 29071590
Hazardous Substances Data 135-19-3(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg


2-Naphthol Usage And Synthesis

2-Naphthol Preparation Products And Raw materials
GOLD Member
May-04-22
 
Commodity: Potassium Amyl Xanthate

Product Nature
Chemical name: Potassium Amyl Xanthate (PAX)
Equivalent to : Z-6, AERO 350 xanthate
Molecular Formula: C5H11OCSSK
Physical characteristics: Slight yellow or grey yellow free flowing Powder or pellet and soluble in water. It is a xanthate based on the C5 alkyl isoamyl alcohol in the potassium salt form
Testing method: Lead acetate titration
CAS Number: 2720-73-2
EINECS No.: 213-180-2

Use
A Collector With High Collection And Normal Selectivity,widely Use In Floatation Of CU/PB/NE AND PYRITE, Especially For The Floatation Of The Gold In Gold And Copper Mine.it Could Make Good Result In Copper And Lead Oxidized Ore.ofeen Used In Rough Selecting And Scavenging.

Specifications
Chemical components Specification 1 Specification 2
Purity 85% Min 90% Min
Moisture & volatiles 10% Max 4% Max
Free alkali 0.5% Max 0.2% Max

Packing and Storage
120KG IRON DRUM,134 DRUMS PER 20'FCL,16.08MT; (OR 110-180KG IRON DRUM)
850KG Wooden Box,20 Box Per 20'fcl,17mt; (or 500kg,800kg,850kg Wooden Box With Inner BAG) 25-50KG WOVEN BAG
GOLD Member
Feb-02-18
 
Commodity: Caustic Soda Flakes
Caustic Soda Pearls / Bead / Prill / Granule
Caustic Soda solid
Molecular formula: NaOH
Molecule Weight: 40
H.S code: 28151100
CAS: 1310-73-2
UN number 1823
Dangerous Class 8

We use rich natural gas resources and its strategic of liquid alkali procurement, storage, transport conditions, gradually formed transportation and sale of liquid alkali, production and sales base and external processing of flake caustic, solid caustic soda, granular caustic soda, which provide ideal condition and environment for domestic and foreign trade.

Typical Specifications:

Indexes Purity NaCl Na2CO3 Fe2O3
99 99 0.15 0.9 0.003
98 98 0.15 0.5 0.002
96 96 2.8 0.85 0.005

Used as a raw material in the manufacture of soaps ,detergent, textiles and paper ,and likewise ,in water softening and treatment, drilling mud in oil field, refining petroleum products, and washing beer and soft drink bottles, in food and drug industry ,it is used as acidity regulator, alkali, and so on.

Packing :Flake/pearl:25kg/plastic woven bag with PE inner
Solid :200kg/ iron drum

Loading weight in 1 x 20fcl: 27mt
GOLD Member
Mar-28-23
 
Aluminium tri-sec-butoxide
Product Name: Aluminium tri-sec-butoxide
CAS: 2269-22-9
MF: C12H27AlO3
MW: 246.32
EINECS: 218-871-2
Mol File: 2269-22-9.mol

Chemical Properties
Boiling point 40 C
density 0.967 g/mL at 25 C(lit.)
vapor pressure 23 hPa (195 C)
refractive index 1.439
Fp 82 F
storage temp. Flammables area
solubility Miscible with alcohol, isopropyl alcohol and toluene.
form Oily Liquid
Specific Gravity 0.9671
color Light yellow


Item Specifications
Appearance Colorless transparent or light yellow liquid
Purity % 99.99
Aluminum content % 10.2-12.5
Density ( g/cm3) 0.92-0.97
GOLD Member
May-02-22
 
Appearance White granular, good fluidity
Active Oxygen(O) 13.5%
Iron(Fe)(%) 0.0015 %
Moisture 2.0%
Bulk Density g/l 700-1100
PH value
(3%water solution 20) 10~~11
GOLD Member
Dec-27-22
 
Monocalcium Phosphate (MCP) Feed grade

Product Features
The purity of the product, calcium and phosphorus ratio appropriate to ensure a higher degree of its biological effects. Phosphorus content greater than 22% of the products, their biological effects better.
This unique high-tech companies use technology to make our products crystallization, high purity and its harmful impurities significantly below
standards:HG28611997
Drying process advanced products, products with low free water under the premise that the product does not lose crystallization of water, avoid the product in the drying process for the loss of water caused by crystallization of biological effects of the reduction.

Specifications
Appearance white powder or granule
Total P 22%min
Ca 13-18%
F 0.18% max
As 10 ppm max
Pb 10ppm max
Moisture 4%max

Source of OriginRock

Packing and Storage Knitted bags lined polyethylene plastic bags double
packaging, Weighing 25Kg. Transportation-and harsh rain. Stored in a cool, ventilated, dry place
GOLD Member
Jul-11-22
 
English name: Calcium Nitrite
Molecular formula: Ca(NO2)2
Molecular weight: 132
CAS NO. 13780-06-8
HS CODE: 28341000
UN NO.: 2627 5.1 type oxidizing agent
Properties: White powder without crystal water. It is tasteless and toxic. Easily in water and presents light yellow solution.

Specifications:
Item Superior grade First grade Second grade
Calcium Nitrite[Ca(NO2)2 as dry basis]% 94 92 90
Calcium Nitrate[Ca(NO3)2 as dry basis]% <4 <5 <6
Calcium hydroxide[Ca(OH)2 as dry basis]% <1.0 <1.0 <1.0
Moisture % <1.0 <1.0 <1.0
Water insoluble matter % <0.6 <1.0 <1.0

Uses:
1. Antifreezing agent.
2. Inhibitor of steel in concrete.
3. Can prepare compound early strength agent.
Packing 25/50/1000KG woven bag lined with plastic or according to customer's requirements.
GOLD Member
Feb-02-18
 
Commodity: Calcium carbide
Molecular formula:CaC2
Molecule Weight: 64.10
H.S code:28491000
CAS: 75-20-7
UN NO.1402
HAZARD CLASS: 4.3

Application: It is a kind of basic material for organic synthesis, and can produce acetylene gas for cutting and welding, also be material for calcium cyanamide.

Appearance: Grey, black solid, purple when its purity is more than 90%.
Granule:4-25mm / 15-25mm / 25-50mm / 50-80mm /25-80/ 80-120mm

Package: Net in 100kg or 50kg new iron drums with nitrogen.

Specification: GB10665-2004

Specification Superfine Grade First Grade Second Grade
Gas yield(L/kg)L/kg 305 295-305 285-295
PH3 content in acetylene (PH3%) 0.06 0.08 0.08
H2S content in acetylene (H2S%) 0.1 0.1 0.1

Loading weight in 1 x 20fcl:22.5mt
22000 L Tryptophan(Cas:73 22 3) Suppliers
Short on time? Let L Tryptophan(Cas:73 22 3) sellers contact you.
Explore L Tryptophan(Cas:73 22 3) related import export discussions