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L-Cysteine Hydrochloride Anhydrous

CAS: 52-89-1

Molecular formula: C3H8ClNO2S, molecular weight 157.62 (anhydrous, without crystal water)

Appearance: white crystalline powder, with a slight sulfur odor and strong sour taste; 1% aqueous solution pH 1.5~2.0, strongly acidic

Core group: thiol (-SH), strong reducing property, essential precursor for human glutathione synthesis

product details

1. Health food/solid powder (preferably anhydrous) system has low moisture content, which will not accelerate the oxidative deterioration of lipid-soluble antioxidants such as astaxanthin, lutein, and lycopene: 

2. Cosmetics anhydrous system is suitable for dry powder facial masks, perm powder, anhydrous essence, and ointment: 

3. Special anhydrous food processing


项目Items

标准Specifications

结果Results

检测方法  Test Method

外观Appearance

白色结晶或结晶性粉末

White crystals or crystalline powder.

 

Conforms

 

Visual

比旋度Specific rotation [a]D20

+5.6°~+8.9°

+6.4°

AJI TEST 1

透光度State of solution

≥98.0%

98.9%

AJI TEST 2

重金属Heavy metals(Pb)

≤10ppm

<10ppm

AJI TEST 7

砷盐Arsenic(AsO)

≤1ppm

<1ppm

AJI TEST 8

其他氨基酸Other amino acids

未检出

Chromatographically not detectable

 

Conforms

AJI TEST 9

干燥失重Loss on drying

≤1.0%

0.81%

AJI TEST 11

灼烧残渣Residue on ignition

≤0.1%

0.04%

AJI TEST 13

含量Assay

98.0~102.0%

99.7%

AJI TEST 16

p H 

1.5~2.0

1.7

AJITEST 33

论:本批产品经检验符合日本味之素AJI92标准。

Conclusion:This Batch Is Conforming With The Standard Of AJI92.


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