142941-98-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142941-98-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,4 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142941-98:
(8*1)+(7*4)+(6*2)+(5*9)+(4*4)+(3*1)+(2*9)+(1*8)=138
138 % 10 = 8
So 142941-98-8 is a valid CAS Registry Number.
142941-98-8Relevant articles and documents
Aqueous base induced selective transformations of 3-(2-oxoalkyl) thiazolium cations
Singh,Singh,Kumar
, p. 4545 - 4550 (1992)
The title compounds react with aqueous sodium hydroxide (i) 2%, 1 equiv., (ii) 2%, 2 equiv., and (iii) 8%, 2 equiv., to give 2-hydroxy-2-alkyl/aryl-4-formyl-2,3-dihydro-1,4-thiazines (7), 2-alkyl/aryl-4-formyl-1,4-thiazines (8) and 2-aroylthiazoles (9), r
