90828-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90828-50-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,2 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90828-50:
(7*9)+(6*0)+(5*8)+(4*2)+(3*8)+(2*5)+(1*0)=145
145 % 10 = 5
So 90828-50-5 is a valid CAS Registry Number.
90828-50-5Relevant 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.
