21087-63-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21087-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,8 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21087-63:
(7*2)+(6*1)+(5*0)+(4*8)+(3*7)+(2*6)+(1*3)=88
88 % 10 = 8
So 21087-63-8 is a valid CAS Registry Number.
21087-63-8Relevant academic research and scientific papers
INFLUENCE OF MEDIUM AND TYPE OF SUBSTITUENT ON THE YIELD OF PRODUCTS OF METHYLATION OF 4-SUBSTITUTED 1,2,4-TRIAZINE-3(2H)-THION-5(4H)-ONES
Mironovich, L. M.,Salistyi, S. M.
, p. 888 - 890 (2007/10/03)
We studied the methylation of 4-R-6-R-1,2,4-triazine -3(2H)-thion-5(4H)-ones (R=H, CH3, H2N, (CH3)2NCO, C6H5NN) by methyl iodide in aqueous and aqueous-methanol solutions of NaOH.