821789-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 821789-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,1,7,8 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 821789-67:
(8*8)+(7*2)+(6*1)+(5*7)+(4*8)+(3*9)+(2*6)+(1*7)=197
197 % 10 = 7
So 821789-67-7 is a valid CAS Registry Number.
821789-67-7Relevant articles and documents
Fluorophore compounds and their use in biological systems
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, (2008/06/13)
Fluorophore compounds and methods for their use are disclosed. The fluorophores contain a 2-dicyanomethylen-3-cyano-2,5-dihydrofuran (DCDHF) moiety and one or more donor groups conjugated to the 2-dicyanomethylen-3-cyano-2,5-dihydrofuran group. The donor