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Hot Selling for 68-95-1 - N-Acetyl-amino acids N-Acetyl-L-Leucine CAS No.: 1188-21-2 bulk stock – Tongsheng Amino Acid
Product Detail: Appearance White powder Specific Rotation [20/D] (C=4 in methanol) -22.0 to -26.0° State of Solution (Transmittance) Not less than 98.0% Heavy Metals (Pb) Not more than 20ppm Iron(Fe) Not more than 10ppm Arsenic(As2O3) Not more than 2ppm Chloride (Cl) Not more than 0.02% Loss on drying Not more than 0.35% Residue on ignition Not more than 0.20% Assay 98.0% to 102.0% Validity period 2 years Package 25kg/ drum Storage Keep in dark place,Sealed in dry,... -
Good quality 142253-56-3 - (S)-(+)-2-Methylpiperazine 74879-18-8 manufacturer – Tongsheng Amino Acid
Product Detail Appearance: white solid Purity: ≥98% Product Quality meets: Our company standards Packing : 25kg/ drum ,1kg,5kg or according to customer requirements. Source: Chemical Synthetic Country of Origin : China Synonyms (S)-(+)-2-METHYLPIPERAZINE; (S)-2-METHYLPIPERAZINE; PIPERAZINE,2-METHYL-,(2S)-; (2S)-2-Methylpiperazine; (S)-(+)-2-METHYLPIPERAZINE; (S)-(+)-2-METHYLPIPERZINE; L-(+)-2-Methylpiperazine S-(+)-2-Methylpiperazine Application Chiral Building Blocks;Heterocyclic Building B... -
China Cheap price 31972-52-8 - 3-methyl-N-(trifluoroacetyl)-L-Valine CAS No.: 666832-71-9 – Tongsheng Amino Acid
Product Detail Appearance: solid Purity: ≥98% Product Quality meets: Our company standards. Stability : Stable under recommended storage conditions. Conditions for safe storage : Store in cool place .Keep container tightly closed in a dry and well-ventilated place. Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure – obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is f... -
Wholesale Dealers of Fmoc-Leu-Oh - Fmoc-Asn-OH CAS: 71989-16-7 China Factory – Tongsheng Amino Acid
Product Detail CAS: 71989-16-7 Appearance: White to off white solid Purity: ≥98% Product Quality meets: Our company standards Packing : 1kg or according to customer requirements. Source: Chemical Synthetic Synonyms FMOC-ASN-OH;FMOC-ASN N-ALPHA-FMOC-L-ASN; N-ALPHA-FMOC-L-ASPARAGINE; NALPHA-[(9H-FLUOREN-9-YLMETHOXY)CARBONYL]-L-ASPARAGINE; N-ALPHA-(9-FLUORENYLMETHYLOXYCARBONYL)-N-L-ASPARAGINE; N-(9-FLUORENYLMETHOXYCARBONYL)-L-ASPARAGINE; NALPHA-(9-FLUORENYLMETHOXYCARBONYL)-L-ASPARAGINE; Superio... -
China New Product Fmoc-Tyr(Tbu)-Oh - 1155-64-2 Lys(Cbz)-OH manufacturer – Tongsheng Amino Acid
Product Detail CAS: 1155-64-2 Appearance: White to off white powder Purity: ≥98% Product Quality meets: Our company standards Packing : 1kg or according to customer requirements. Source: Chemical Synthetic Synonyms LYSINE(Z)-OH; H-LYS(CBZ)-OH; H-LYS(Z)-OH; N6-Carbobenzyloxy-L-lysine; N6-Cbz-L-Lysine Superiority 1. High quality &a... -
Factory Supply N-(2-Chloroethyl)Pyrrolidine Hydrochloride - 1-(tert-butoxycarbonyl)-2-methyl-L-proline CAS No.: 103336-06-7 – Tongsheng Amino Acid
Product Detail Appearance: solid Purity: ≥98% Product Quality meets: Our company standards. Stability : Stable under recommended storage conditions. Conditions for safe storage : Store in cool place .Keep container tightly closed in a dry and well-ventilated place. Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure – obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is f... -
Best quality (S)-1-Boc-Piperidine-2-Carboxylic Acid - 6-(Chloromethyl)uracil CAS No.: 18592-13-7 manufacturer – Tongsheng Amino Acid
Product Detail Appearance: solid Purity: ≥98% Product Quality meets: Our company standards. Stability : Stable under recommended storage conditions. Conditions for safe storage : Store in cool place .Keep container tightly closed in a dry and well-ventilated place. Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure – obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is f... -
High Quality for 1378388-16-9 - (2S)-1-(Chloroacetyl)-2- pyrrolidinecarbonitrile 207557-35-5 manufacturer – Tongsheng Amino Acid
Product Detail Appearance: white powder Purity: ≥98% Product Quality meets: Our company standards Packing : 25kg/fiber drum ,1kg,5kg or according to customer requirements. Source: Chemical Synthetic Country of Origin : China Synonyms 2S)-1-(2-Chloroacetyl)-2-9-pyrrolidinecarbonitrile; 2-Pyrrolidinecarbonitrile,1-(chloroacetyl)-,(2S)-; (S)-1-(2-CHLOROACETYL)PYRROLIDINE-2-CARBONITRILE; (2S)-1-(CHLOROACETYL)-2-PYRROLIDINECARBONITRILE; (2S)-1-CHLOROACETYLPYRROLIDINE-2-CARBONITRILE Application AC... -
Well-designed 18621-17-5 - (2S)-1-(Chloroacetyl)-2- pyrrolidinecarbonitrile 207557-35-5 manufacturer – Tongsheng Amino Acid
Product Detail Appearance: white powder Purity: ≥98% Product Quality meets: Our company standards Packing : 25kg/fiber drum ,1kg,5kg or according to customer requirements. Source: Chemical Synthetic Country of Origin : China Synonyms 2S)-1-(2-Chloroacetyl)-2-9-pyrrolidinecarbonitrile; 2-Pyrrolidinecarbonitrile,1-(chloroacetyl)-,(2S)-; (S)-1-(2-CHLOROACETYL)PYRROLIDINE-2-CARBONITRILE; (2S)-1-(CHLOROACETYL)-2-PYRROLIDINECARBONITRILE; (2S)-1-CHLOROACETYLPYRROLIDINE-2-CARBONITRILE Application AC... -
China Cheap price 20859-02-3 - N-Acetyl-amino acids N-Formyl-L-Leucine CAS No.: 6113-61-7 bulk stock – Tongsheng Amino Acid
Product Detail: Appearance Off-white to white powder Specific Rotation [20/D] (c=1 in H2O) -37°to -41° Water(KF) ≤0.50% Assay 98.5% to 101.5% Validity period 2 years Package 25kg/ drum Storage Keep in dark place,Sealed in dry,Room Temperature Transportation by sea or by air or by land Country of Origin China Payment terms T/T Synonyms： FOR-LEU-OH; (S)-(+)-N-formyl leucine; FORMYL-L-ALANINE; (S)-2-formamido-4-methylpentanoic acid; N-HCO-(S)-Leu; N-... -
Hot sale 18621-18-6 - 6-(Chloromethyl)uracil CAS No.: 18592-13-7 manufacturer – Tongsheng Amino Acid
Product Detail Appearance: solid Purity: ≥98% Product Quality meets: Our company standards. Stability : Stable under recommended storage conditions. Conditions for safe storage : Store in cool place .Keep container tightly closed in a dry and well-ventilated place. Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure – obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is f... -
Excellent quality N-Boc-3-Pyrrolidinone - (1R)-1-(5-methyl-1,2,4-oxadiazol-3-yl)ethanamine HCL CAS No.: 1225462-38-3 – Tongsheng Amino Acid
Product Detail Appearance: solid Purity: ≥98% Product Quality meets: Our company standards. Stability : Stable under recommended storage conditions. Conditions for safe storage : Store in cool place .Keep container tightly closed in a dry and well-ventilated place. Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure – obtain special instructions before use. Provide appropriate exhaust ventilation at places where dust is f...
