6272-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6272-21-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6272-21:
(6*6)+(5*2)+(4*7)+(3*2)+(2*2)+(1*1)=85
85 % 10 = 5
So 6272-21-5 is a valid CAS Registry Number.
6272-21-5Relevant articles and documents
An azo-type blue reactive blue dye, preparation method and its application
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Paragraph 0091-0092, (2016/10/31)
The invention relates to an azo type blue reactive dye, and its preparation method and application. The blue reactive dye has structural general formula (I), and has good water solubility, high affinity under dyeing conditions, wide applicability for a pr