2248-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2248-44-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,4 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2248-44:
(6*2)+(5*2)+(4*4)+(3*8)+(2*4)+(1*4)=74
74 % 10 = 4
So 2248-44-4 is a valid CAS Registry Number.
2248-44-4Relevant 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.