128810-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128810-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,1 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128810-17:
(8*1)+(7*2)+(6*8)+(5*8)+(4*1)+(3*0)+(2*1)+(1*7)=123
123 % 10 = 3
So 128810-17-3 is a valid CAS Registry Number.
128810-17-3Relevant articles and documents
Polydiphenyldiacetylenes
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, (2008/06/13)
Disclosed herein are polydiphenyldiacetylenes having the following repeating unit (III): STR1 (wherein R1 denotes a hydrogen atom or a methoxy group; R2 denotes a hydrogen atom, a methoxy group or a methylamino group; R3 d
