21407-29-4 Usage
Chemical Properties
yellow to beige crystalline powder
Check Digit Verification of cas no
The CAS Registry Mumber 21407-29-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,0 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21407-29:
(7*2)+(6*1)+(5*4)+(4*0)+(3*7)+(2*2)+(1*9)=74
74 % 10 = 4
So 21407-29-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H13NO2S/c1-11-7-3-6(5-10)9(13)4-8(7)12-2/h3-4,13H,5,10H2,1-2H3
21407-29-4Relevant articles and documents
SYNTHESIS AND INVESTIGATION OF 2-OXO- AND 2-THIOXO-1,3-BENZOTHIAZINE DERIVATIVES
Szabo, J.,Varga, I.,Fodor, L.,Bernath, G.,Sohar, P.
, p. 429 - 437 (2007/10/02)
Ring-closure of the 2-mercaptobenzylamine derivatives (10a-d) with phosgene and thiophosgene gave the 7a-d 2-oxo- and the 9a-d 2-thioxo-3,4-dihydro-2H-1,3-benzothiazine derivatives.Other experiments for the preparation of these compounds and analogues are