89542-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89542-30-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,4 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89542-30:
(7*8)+(6*9)+(5*5)+(4*4)+(3*2)+(2*3)+(1*0)=163
163 % 10 = 3
So 89542-30-3 is a valid CAS Registry Number.
89542-30-3Relevant articles and documents
PYRROLOBENZOTHIAZOLE DERIVATIVES
Briks, Yu. L.,Romanov, N. N.
, p. 438 - 442 (1991)
A new method for obtaining pyrrolobenzothiazole derivatives, which can be used for the specific synthesis of polymethine dyes with predesignated properties, was developed.