L-Cysteine hydrochloride monohydrate USP is used as a precursor in food, and personal care products. It is actively involved in the production of flavors such as meat flavor obtained by reacting with sugars. It plays an important role as a key raw material for the manufacture of N-acetyl-L-cysteine, S-carboxymethyl-L-cysteine and L-cysteine base. It is involved in the treatment of liver disease as an antioxidant and antidote. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool. U.S.P. A chemical grade of sufficient purity to meet or exceed requirements of the U.S. Pharmacopeia (USP); acceptable for food, drug, or medicinal use; may be used for most laboratory purposes. Sales Specifications Appearance: White crystalline powder Assay: 99.0-100.5% Identification: Infrared Absorption Specific Rotation: +5.5-+7.0o State of Solution: Clear and colorless, 98.0% Min Chloride: 19.89%-20.29% Ammonium: 0.02% Max Sulfate: 0.020% Max Iron: 10 PPM Max Heavy Metals: 10 PPM Max Arsenic: 1 PPM Max Other Amino Acids: Chromatographically not detectable Loss on Drying: 8.5%-12.0% Residue on Ignition: 0.1% Max pH: 1.5-2.0 Particle Size: 20 Mesh Bulk Density: 0.7-0.9 g/ml Tapped Density: 0.8-1.2 g/ml Lead: 1 PPM Max Mercury: 1 PPM Max Cadmium: 1 PPM Max Total Plate Count: Yeast and Molds: Coliforms: E Coli: Negative Salmonella: Negative Pseudomonas: Negative S. Aureus: Negative Packing 55.12 lb drum
N-Acetyl-L-Cysteine, commonly known as NAC, is renowned for its powerful antioxidant properties. By neutralizing harmful free radicals in the body, it helps protect against oxidative stress and supports overall cellular health. Additionally, NAC plays a crucial role in the production of glutathione, a vital antioxidant that aids in detoxification and immune system function. N-Acetyl-L-Cysteine USP kosher is used mainly in the pharmaceutical, food and Cosmetics industries. Itâ??s used as an anti-aging agent in cosmetics, itâ??s also used as raw pharmaceutical ingredient in the production of pharmaceuticals and medicines. Itâ??s is also used as a nutritional supplement in animal Feed. This product has been tested and meets the standards set by the United States Pharmacopeia (USP) for purity and quality. Kosher Certificate Is Available Upon Request Specifications (USP41) Appearance: White crystals or crystalline powder Identification: Infrared Absorption Assay: 98.0 to 102.0% (Calculated on the dried basis) Specific rotation alphaD25 +21.0 to +27.0 pH: 2.0 to 2.8 Loss on Drying: 1.0 % Max Residue on ignition: 0.5% Max Heavy metals (Pb): lO ppm Max Lead: 3 ppm Max Arsenic (AS203): 1 ppm Max Cadmium: 1 ppm Max Mercury(Hg): 0.1 ppm Max Residual Solvents: Meets the requirements Particle Size: 20 Mesh Density: Bulk density report only, Tap density report only Total plate count: < 1000 cfu/g Yeast & molds: < 100 cfu!g Coliforms: < 10 cfu/g E Coli: Negative Salmonella: Negative Pseudomonas: Negative S.Aureus: Negative Packing 55.115 lb cardboard drum.
L-Cysteine, E920, CAS No.52-90-4, a non-essential amino acid manufactured through fermentation. Cysteine is extracted from raw materials of animal and human origins. Cysteine has the same structure as serine, but with one of its oxygen atoms replaced by sulfur. As an experienced L-Cysteine manufacturer and supplier, we has been supplying and exporting L-Cysteine 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. Categories Amino Acids Qty in 20â??FCL 12000kg Min Order 500kg Origin China Packaging Factory Packaging or Neutral Certificate ISO, Kosher, Halal, BRC E No. E920 CAS No. 52-90-4 HS Code 293090 Specification FCC/USP L-Cysteine Specification Item Specifications (AJI97 ) Appearance White crystal or crystalline powder; tasteless Assay, % 98.5~101.0 Specific rotation -218~ -224 Loss on drying, % 0.2 Transmittance, % 98.0 Chloride (as Cl), % 0.02 Sulfate (as SO4), % 0.02 Ammonium as (as NH4), % 0.02 Iron (as Fe), % .001 Heavy Metals (as Pb), % 0.001 Arsenic (as As), % 0.0001 pH Value 5.0~6.5 Residue on ignition, % 0.1 Other amino acid Conforms
Product Name: S-Acetyl-L-glutathione Other Name: S-acetylglutathione Molecular Formula: C12H19N3O7S Molecular Weight: 349.36 Appearance: White powder Purity: 99% CAS NO.: 3054-47-5 EINECS No.: 221-275-5 Supplier: ZHENYIBIO S-Acetyl-L-Glutathione is a tripeptide that contains an unusual peptide linkage between the amine group of cysteine and the carboxyl group of the glutamate side-chain. S-Acetyl-L-Glutathione has strong effects of antioxidant, preventing damage to important cellular components caused by reactive oxygen species such as free radicals and peroxides.
Product Name: L-Arginine Alpha Ketoglutaric 1:1 Molecular Formula: C11H20N4O7 Molecular Weight: 320.2991 Appearance: White crystalline powder Purity: 99% CAS Number: 16856-18-1 EINECS Number: 240-882-6 Standard: USP Standard Supplier: ZhenYiBio Product Description: L-Arginine alpha-ketoglutarate, is a precursor for nitric oxide production and potentially improves blood flow and nutrient delivery (such as creatine or amino acids) to muscles. AAKG gives bodybuilders a stronger "pump" when working out, and is a primary ingredient in nitric oxide powdered supplements. This category contains products which are simply the raw AAKG powder.
Product Name: L-Arginine Alpha Ketoglutaric 2:1 Other Name: L-Arginine 2-Oxopentanedioate Molecular Formula: C17H38N8O11 Molecular Weight: 530.53 Appearance: White crystalline powder Purity: 99% CAS Number: 5256-76-8 EINECS Number: 226-059-4 Standard: USP Standard Supplier: ZhenYiBio Product Description: L-Arginine alpha-ketoglutarate, is a precursor for nitric oxide production and potentially improves blood flow and nutrient delivery (such as creatine or amino acids) to muscles. AAKG gives bodybuilders a stronger "pump" when working out, and is a primary ingredient in nitric oxide powdered supplements. This category contains products which are simply the raw AAKG powder.
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
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
Potassium Monopersulfate compound, a white, free flowing crystalline granule, is non-toxic, odorless, and easily soluble in water. It is an efficient, environmentally friendly, and multifunctional acidic oxidant. General Information Product Name Potassium Monopersulfate compound CAS 70693-62-8 Chemical formula 2KHSO5 KHSO4 K2SO4 Molecular weight 614.7 Specification Appearance White, free flowing granule Available Oxygen, % 4.5 KHSO5,  % 42.8 Loss on Drying  % 0.15 Bulk Density, g/L 0.80 pH (10g/L,25 C) 2.0 .4 Sieve Residue on 75 m test sieve, % 90.0 Packaging Product is packaged in plastic woven bags lined with polyethylene film, with a net weight of 20kg/bag or 50kg, or the packaging form and net content can be determined through negotiation according to customer requirements. Storage Store in a cool and well ventilated warehouse to prevent exposure to sunlight, rain, and moisture. Prohibit mixing with reducing substances for storage.
