128646-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128646-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,4 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128646-71:
(8*1)+(7*2)+(6*8)+(5*6)+(4*4)+(3*6)+(2*7)+(1*1)=149
149 % 10 = 9
So 128646-71-9 is a valid CAS Registry Number.
128646-71-9Relevant articles and documents
Polyazo dyes with diazo components of the aminophenol and the amino diphenyl-sulfide, -sulfoxide or -sulfone series
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, (2008/06/13)
Polyazo dyes useful for dyeing leather in the free form or as copper, chromium, iron, cobalt or nickel complexes have the formula STR1 where m is 0, 1 or 2, n is 0 or 1, p is from 1 to 2, q is from 0 to 1, and R1, R2, R3,
