157927-52-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157927-52-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,9,2 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157927-52:
(8*1)+(7*5)+(6*7)+(5*9)+(4*2)+(3*7)+(2*5)+(1*2)=171
171 % 10 = 1
So 157927-52-1 is a valid CAS Registry Number.
157927-52-1Relevant academic research and scientific papers
PYRIDOPYRIMIDINE DERIVATIVES, THEIR PRODUCTION AND USE
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, (2008/06/13)
Pyridopyrimidine derivatives of the formula (A), wherein n denotes an integer of 0 to 3, Q stands for--(CH 2) m--,--O--,--S(O) P--or--N--, and R 1 to R 5 stand for substituents, where R 3 is an optionally substituted phenyl, naphthyl, pyridyl, quinolyl, q
