87409-77-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87409-77-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,4,0 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87409-77:
(7*8)+(6*7)+(5*4)+(4*0)+(3*9)+(2*7)+(1*7)=166
166 % 10 = 6
So 87409-77-6 is a valid CAS Registry Number.
87409-77-6Relevant academic research and scientific papers
CONDENSED HETEROCYCLES WITH A THIAZOLE NUCLEUS. 8. THIAZOLOPYRIMIDOPYRIMIDINES
Mikitenko, E.K.,Romanov, N.N.
, p. 921 - 923 (2007/10/02)
Condensation of 4-amino-2-methylthiothiazolium salts with 2,4,6-trichloro-5-formylpyrimidine or 3-R-2,4-dioxo-6-chloro-5-formyl-1,2,3,4-tetrahydropyrimidines yielded mesoionic derivatives of a new heterocyclic system - thiazolopyrimidopyrimi