L-Cysteine HCL Monohydrate

EP, USP + LEC + Microbiological requirements

CAS #:

7048-04-6

Molecular Formula:

C3H8ClNO2S . H2O

Synonym:

L-2-Amino-3-mercaptopropanoic Acid Hydrochloride

Molecular Weight:

175.64 g/mol

Overview

L-Cysteine Hydrochloride, Monohydrate, USP is a semi-essential amino acid and can be biosynthesized in humans. It is often used as a food additive. Its FCC grade meets the requirements of the Food Chemical Codex indicates and is suitable for all food, beverage and nutritional supplement applications.

Characters Unit Specification
Identity A (EP) Correlates to test
Identity B (EP) Correlates to test
Identity E (EP) Correlates to test
Identity A (USP) Correlates to test
Appearance of solution (EP) Correlates to test
Impurity A at 570 nm (EP) % ≤ 0.5
Any ninhydrin positive substance (EP) % ≤ 0.2
Total Impurities (EP) % ≤ 1.0
Individual Impurities (USP) % ≤ 0.5
Total Impurities (USP) % ≤ 2.0
Assay (EP) % 98.5 - 101.0
Assay (USP) % 98.5 - 101.5
Residue on lgnition % ≤ 0.4
Sulphated Ash % ≤ 0.1
Ammonium mg/kg ≤ 200
Sulfate mg/kg ≤ 300
Iron mg/kg ≤ 20
Heavy Metals mg/kg ≤ 10
Specific optical rotation (EP) o 5.5 - 7.0
Specific optical rotation (USP) o 5.7 - 6.8
Loss on drying (EP) % 8.0 - 12.0
Loss on drying (USP) % 8.0 - 12.0
Bacteria Endotoxins IU/g ≤ 5
TAMC CFU/g ≤ 50
TYMC CFU/g ≤ 10
Escherichia coli CFU/g
Staphylococcus aureus CFU/g
Pseudomonas aeruginosa CFU/g
Salmonella CFU/10g

Shelf Life/Retest Date: L-Cysteine HCL Monohydrate raw material can be kept for at least 2 years if stored in a cool and dry place

Storage/Shipping Conditions:

  • Keep containers tightly closed in a dry, cool and well-ventilated place.
  • Protected from light.
  • Storage temperature recommended: < 25°C

Pack Sizes: 100 gm

Please enter your name.
Please enter your company name.
Please enter your email.
Phone number should be between 7 - 15 digits!
Please enter product name.
Please enter your message.