124469-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124469-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,4,6 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 124469-98:
(8*1)+(7*2)+(6*4)+(5*4)+(4*6)+(3*9)+(2*9)+(1*8)=143
143 % 10 = 3
So 124469-98-3 is a valid CAS Registry Number.
124469-98-3Relevant articles and documents
SYNTHESIS AND PROTOTROPIC ISOMERIZATION OF 1-NITROPHENYL-2-ACYLPYRROLES
Pina, M.C.,Budilin, V.A.,Rodrigues, M.,Bundel, Yu. G.
, p. 268 - 271 (2007/10/02)
Acylation of 1-nitrophenylpyrroles by acid anhydrides leads to 2-acylpyrroles or their mixtures with 3-acylpyrroles, the formation of the latter being explained by acid isomerization of the 2-isomers.