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Industrial L-cystine (1)

 Last Update: 2021-10-18
 Source: Internet
 Author: User

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1 Subject content and scope of application

This standard specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of industrial L-cystine

This standard applies to industrial L-cystine extracted by hydrolysis of hair

Chemical name 3,3'-dithiodialanine

Molecular formula C ₆ H ₁₂ O ₄ N ₂ S ₂

Structural formula

Relative molecular mass 240.

2 Reference standards

Preparation of standard solution for GB601 chemical reagent titration analysis (volume analysis)

Preparation of GB602 Standard Solution for Impurity Determination of Chemical Reagents

Preparation of preparations and products used in GB603 chemical reagent test method

GB613 General method for determination of specific rotation of chemical reagents

The expression method and judgment method of GB1250 limit value

GB6284 General method for determination of moisture content in chemical products gravimetric method

GB6678 General Rules for Sampling of Chemical Products

GB6679 General Rules for Sampling of Solid Chemical Products

GB7531 Determination of Ash Content in Organic Chemical Products

GB7532 General method for determination of heavy metal content in industrial organic products.

GB8170 Numerical Rounding Rules

3 Technical requirements

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