4287-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4287-80-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4287-80:
(6*4)+(5*2)+(4*8)+(3*7)+(2*8)+(1*0)=103
103 % 10 = 3
So 4287-80-3 is a valid CAS Registry Number.
4287-80-3Relevant academic research and scientific papers
AROMATIC DERIVATIVES OF 2H-PYRIMIDINO-1,4-THIAZINE
Orlov, V. D.,Tueni, M.,Kolos, N. N.,Papiashvili, I. Z.
, p. 232 - 234 (2007/10/02)
5-R1-3-(4-R-Phenyl)-2H-pyrimidino-1,4-thiazines 1 = N(CH3)2 or OCH3>, which exist primarily in the 2H form, were synthesized by the reaction of ο-bromoacetophenones with 4-R1-5-amino-6-thiopyrimidines.
