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Yancheng Shengweier Chemical Co., Ltd.

Supplier From China
Apr-23-09
Supplier : 2'-deoxy-l-thymidine(telbivudine), varenicline free base, varenicline tartrate, varenicline intermediate, phloroglucinol anhydrous.

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Contact Details:
No 20, Yanma Road
Yancheng 224000
Jiangsu China


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More Items Similiar to: Yancheng Shengweier Chemical Co., Ltd.

Apr-23-09
 
Synonymú¦varenicline tartrate
Cas noú¦375815-87-5
Molecular formula : c13h13n3.C4h6o6
Chemical structure:
Molecular weightú¦361.35
Purity: 99%
Appearance: white crystal.
Apr-23-09
 
Varenicline base
Apr-23-09
 
Nameú¦ 2'-deoxy-l-thymidine (raw material of telbivudine)
Nameú¦ 1-[(2s, 4r, 5s)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2, 4-dione
Casú¦ 3424-98-4
Formulaú¦ c10h14n2o5
Molecular weight: 242.2296
Purity: 99%.
Appearance: white crystal.
GOLD Member
Aug-06-22

2 - Naphthol

$2.3k
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
Aug-06-22
 
4-Hydroxybenzoic acid

Chemical Name:4-Hydroxybenzoic acid
Trade Name:p-oxybenzoic acid
Molecular Formula:C7H6O3
Molecular Weight:138.12
CAS No.:99-96-7

Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone,
slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46
Use: Can be used as antiseptic, intermediate of dyes, pharmaceuticals; as main material of liquid crystal polymers; as material of pesticide intermediate

Specification
Item Specification
Polymer Grade Technical Grade
Appearance white crystal powder white crystal powder
Purity(on dry base) % 99.6 99.0
Melting Point 214-217 212-216
Odor odorless odorless
Solubility Clear and transparent clear and transparent
Loss on Drying % 0.20 0.50
Color(Pt-Co) 10 40
Ash % 0.02 0.15
Sulfate(SO42-) 0.01 0.05
Chloride(Cl-) % 0.005 0.02
Phe% 0.01 0.10
Salicylic Acid % 0.02 0.10
4-Hydroxyisophthalic Acid(HIPA) ppm 500 /
Insolubles in Metha ppm 50 /
Potassium(K+) ppm 5 /
Sodium (Na+) ppm 5 /
Iron (Fe) ppm 5 /
Ca2++Mg2+ppm 5 /
GOLD Member
Sep-12-19
 
1. Product name: Ammonium bisulfite solution
2. Molecular formula: NH4HSO3
3. Molecular weight: 99.10
4. Physical and chemical properties: light yellow liquid, with a little sulfur dioxide odor. Relative density (70%) : 1.4.
5. Technical index:

Item Photographic grade
Appearance clear light yellow liquid
Content w/w % 68-72
pH value (stock solution 20C) 4.0-6.0
Iron (Fe) w/w % 0.001

6. Packing: 270kg plastic drum, 1.25MTS/IBC

7. Uses: in synthesizing dye intermediate, surfactant, herbicide, reducing agent in pharmaceutical industry, etc.
GOLD Member
Dec-27-22
 
Product Name:Aluminum sulfate
Molecular Formula:AL2(SO4)3
Hs Code:2833220000
CAS Code:10043-01-3
Standard:HG2225-2010

Shape:flake, powder, 2-4cm lump and 2-5mm/3-8mm granular

Properties:There are two types,anhydrous aluminium sulphate and aluminium sulphate octadecahydrate. In normal condition , it is AL2(SO4)3�·18H2O; AL2(SO4)3�·14H2O after efflorescence, can be white powder , glittering flaky or crystalline flakes, odorless, sweet to slight bitter.

Use:Sewage Treatment, treatment of drinking water, Sizing of paper , Cement Additive.

Specifications
Item name Standard
AL2O3 15.6% 16.5% 17%
Fe2O3 0.5 %  0.005 % 0.004%
PH value 3.0 3.0 3.0
Water insoluble matter 0.2% 0.04% 0.03%

Packing 25kg or 50kg or 1000kg in plastic lined woven bag
GOLD Member
Jan-08-18

Aluminium Sulphate

$180.00
MOQ: 27  Meters
Sample Available
 
Product Name:Aluminium sulphate
Molecular Formula:AL2(SO4)3
Hs Code: 2833220000
CAS Code:10043-01-3
Standard:HG2225-2010

Shape:flake, powder, 2-4cm lump and 2-5mm/3-8mm granular

Properties:There are two types,anhydrous aluminium sulphate and aluminium sulphate octadecahydrate. In normal condition , it is AL2(SO4)3 18H2O; AL2(SO4)3 14H2O after efflorescence, can be white powder , glittering flaky or crystalline flakes, odorless, sweet to slight bitter.

Use:Sewage Treatment, treatment of drinking water, Sizing of paper , Cement Additive.

Specifications
Item Name Standard
AL2O3 15.6% 16.5% 17%
Fe2O3 ¤0.5 % 0.005 % 0.004%
PH value .0 3.0 3.0
Water insoluble matter 0.2% 0.04% 0.03%

Packing 25kg or 50kg or 1000kg in plastic lined woven bag

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