957471-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957471-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,4,7 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 957471-31:
(8*9)+(7*5)+(6*7)+(5*4)+(4*7)+(3*1)+(2*3)+(1*1)=207
207 % 10 = 7
So 957471-31-7 is a valid CAS Registry Number.
957471-31-7Relevant articles and documents
Process for the preparation of derivatives of tetraaminobenzene
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, (2012/04/04)
A process is provided for preparing complexes of 1,2,4,5-tetraminobenzene with an aromatic diacid. The process design eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
