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Product : Carbocistein
CAS No: 638-23-3
Product introduction :

High quality Carbocistein


Product Name: Carbocistein
Synonyms: (l)-2-amino-3-(carboxymethylthio)propionicacid;(r)-s-(carboxymethyl)cysteine;carbocisteine;l.j.206;l-3-((carboxymethyl)thio)alanine;l-carboxymethylcysteine;rhinathiol;rinatiol
CAS: 638-23-3
MF: C5H9NO4S
MW: 179.19
EINECS: 211-327-5
Product Categories: Food and Feed Additive;Small molecule;API intermediates;PROTECTED AMINO ACID & PEPTIDES;Amino Acids;Cysteine [Cys, C];Nutritional Supplements;Amino Acid Derivatives;Cysteine/Cystine;Peptide Synthesis;A - H;Amino Acids;Modified Amino Acids;Amines;Chiral Reagents;Intermediates & Fine Chemicals;Pharmaceuticals
Mol File: 638-23-3.mol
Carbocistein Structure
Carbocistein Chemical Properties
mp  208-213 °C (dec.)
alpha  -31 º (c=1, 10% NaH2CO3)
storage temp.  2-8°C
Water Solubility  SOLUBLE IN COLD WATER
Merck  14,1802
BRN  1725012
CAS DataBase Reference 638-23-3(CAS DataBase Reference)
EPA Substance Registry System L-Cysteine, S-(carboxymethyl)-(638-23-3)

CERTIFICATE OF ANALYSIS

Product Name:

Carbocistein

CAS No.:

638-23-3

Quantity

1000KGS

Rep Date

Oct.14.2014

Batch NO.

20141014

MFG. Date

Oct.14.2014

Expiry Date

Oct.13.2016

Item

Specifications

Results

Characters

A white or almost white, crystalline powder

Conforms

Identification

Meets the requirements

Conforms

Appearance of solution

Clear and colourless

Conforms

PH

2.8~3.0

2.89

Specific optical rotation

-32.5°~ -35.5°

-33.63°

Ninhydrin-positive substances

Meets the requirements

Conforms

Chloride

0.15%

0.15%

Sulphates

300ppm

300ppm

Heavy metals

10ppm

10ppm

Loss on drying

0.5%

0.23%

Sulphated ash

0.3%

0.11%

Assay

98.5~101.0%

99.70%

Conclusion

The results conforms with EP6 standards

Analyst:Liya                Checker:Weichen                 Q.C.Director:Xuleilei

 

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