Factory best price L-Cysteine base CAS NO: 52-90-4

Factory best price L-Cysteine base CAS NO: 52-90-4

Sinoway Industrial Co.,Ltd is a famous China l-cysteine base manufacturer and supplier, welcome to buy GMP and EP l-cysteine base from us and check the price with us. Basic information ofL-Cysteine base Use of L-Cysteine base: In cosmetic aspect: for the preparation of sun cream,perfume and hair...

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Product Details

Basic information ofL-Cysteine base

L-Cysteine base CAS No: 52-90-4

Name

L-Cysteine base

CAS

52-90-4

EINECS

200-158-2

Molecular Formula

C3H7NO2S

Molecular Weight

121.15

QualityStandard

AJI92

Package Size

25kg/drum

Brief Introduction

White crystal or crystalline powder, easily soluble in water, poorly soluble in ethyl alcohol, insoluble in diethyl ether and other organic solvents

Use of L-Cysteine base:

  1. In cosmetic aspect: for the preparation of sun cream,perfume and hair shampoo.

  2. In pharmaceutical aspect: Liver medicine, antidote and expectorant.

  3. In the food aspect: bread fermentation accelerant and preservative.

COA ofL-Cysteine base:

ITEMS

SPECIFICATION

RESULTS

DESCRIPTION

WHITE CRYSTALS OR CRYSTALLINE POWDER

CONFORMS

IDENTIFICATION

INFRARED ABSORPTION SPECTRUM

CONFORMS

SPECIFIC ROTATION[α]D20°

+8.3° -- +9.5°

+8.41°

STATE OF SOLUTION

≥95.0%

98.8%

CHLORIDE(Cl)

≤0.04%

<0.04%

AMMONIUM(NH4)

≤0.02%

<0.02%

SULFATE(SO4)

≤0.030%

<0.030%

IRON(Fe)

≤10PPM

<10PPM

HEAVY METALS(Pb)

≤10PPM

<10PPM

ARSENIC(As2O3)

≤1PPM

CONFORMS

LOSS ON DRYING

≤0.5%

0.21%

RESIDUE ON IGNITION

(SULFATED)

≤0.1%

0.05%

ASSAY

98.0%-101.0%

99.62%

PH

4.5-5.5

5.1

CONCLUSION:CONFORM WITH AJI92

Specializing in the research, development and custom manufacturing of factory best price l-cysteine base cas no: 52-90-4, SINOWAY, though situated in China, enjoys good reputation among international customers. We supply you with pure natural and well extracted products which can give the best care.

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