USP 99% L-Cysteine Powder with CAS 52-90-4

• CAS No.: 52-90-4
• Formula: 52-90-4
• EINECS: 52-90-4
• Packaging Material: Drum
• Storage Method: Normal
• Shelf Life: >12 Months
• Model NO.: L-Cysteine
• Nutrient Composition: Amino Acid
• Resource: Chemosynthesis
• The content of active substances: 99%
• Appearance: White Powder
• Transport Package: Drum
• Specification: 99%
• Trademark: Recedar
• Origin: China
• HS Code: 0000
• Production Capacity: 100t

Product Description

USP 99% L-Cysteine powder with CAS 52-90-4

Product Name: L-Cysteine
CAS: 52-90-4
MF: C3H7NO2S
MW: 121.16
EINECS: 200-158-2
Product Categories: API intermediates;Cysteine [Cys, C];Amino Acids;Amino Acids and Derivatives;alpha-Amino Acids;Antioxidant;Biochemistry;Nutritional Supplements;L-Amino Acids;Amino Acids;amino
Chemical Properties White crystalline powder
Usage L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly use d as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

Identification: infrared spectrum
specific rotation: +8.3°~ +9.5°
solublity:≥95.0%
Assay:98.0%~101.5%
Heavy metals:≤10ppm
chloride:≤0.04%
As:≤1ppm
Loss on drying:≤0.5%
residue on ignition:≤0.1%
PH:4.5~5.5
Fe: ≤10ppm
amine salt:≤0.02%
sulfate:≤0.03%

COA and other ceitificates will be sent under request.
 

Package	carton drum with two plastic bags inside
Net weight	25KG/Drum
Storage	Sealed in cool and dry place to avoid moisture and light
Shelf life	2 years when properly stored
Lead time	1~3 days after confirmation

  

Test Items	Test Standard
Appearance	White crystals or crystalline powder
Specific rotation	+5.5°~+7.0°
Transmittance	≥98.0%
Chloride	19.89%~20.29%
Assay	99.0%~100.5%
Other amino acids	Chromatographically not detectable
Loss on drying	8.5%~12.0%
Residue on ignition	≤0.10%
Heavy metals	≤10ppm
Iron(Fe)	≤10ppm
Ammonium	≤0.02%
Sulfate(SO4^2-)	≤0.02%
As	≤1ppm
PH	1.5~2.0

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