L-半胱氨酸盐酸盐一水物

[Product Name]: L-CYSTEINE HYDROCHLORIDE MONOHYDRATE
[Other Name]: L-β-MERCAPTO-ALANINE HYDROCHLORIDE MONOHYDRATE, L-CYSTEINE HCl H2O, L-CYSTEINE HCl MONOHYDRATE
[Structural Formula]: [HSCH2CH(NH3+)COOH]Cl-H20
[Molecular Formula]: C3H10ClNO3S
[Molecular Weight]: 175.63
[CAS]: 7048-04-6
[EINECS]: 200-157-7
[E No]: 920
[Description]: occurs as a white, crystalline powder. It is freely soluble in water and in alcohol.
[Standard]: Pharma Grade USP38, Food grade FCCV or according to buyer's requirements.

Item
Pharma Grade (USP38)
E920

Appearance

White crystalline powder

White crystalline powder

Assay(on dry matter)

98.5~101.5%

98.5~101.5%

Specific rotation

+5.7º~+6.8º

+5.0º~+8.0º (20ºC)

Loss on drying

8.0~12.0%

8.0~12.0%

Residue on ignition

NMT 0.4%

0.1% MAX

Sulfate

NMT 0.03%

--

Iron

NMT 30ppm

--

Lead

--

5mg/kg MAX

Related Compounds

Individual impurities: NMT 0.5%
Total impurities: NMT 2.0%

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Usage: Bread improver, Nutritional supplements, antioxidants, color protectants. Used for food nutrition supplements, cosmetic hair care, etc.
Packing: In kraft paper bags or in fiber drum of 25KG net each.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Don’t transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

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