2070-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2070-89-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,7 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2070-89:
(6*2)+(5*0)+(4*7)+(3*0)+(2*8)+(1*9)=65
65 % 10 = 5
So 2070-89-5 is a valid CAS Registry Number.
2070-89-5Relevant articles and documents
Methine dyes
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, (2008/06/13)
The invention relates to a new class of pyrrolobenzimidazole, benzimidazoloisoquinoline and dipyrodinobenzodiimidazole in cyanine sensitizing dyes derived therefrom and their use in silver halide emulsions, and to methods for preparation of such new dyes.