94258-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94258-80-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,2,5 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 94258-80:
(7*9)+(6*4)+(5*2)+(4*5)+(3*8)+(2*8)+(1*0)=157
157 % 10 = 7
So 94258-80-7 is a valid CAS Registry Number.
94258-80-7Relevant articles and documents
Steric effects in the nucleophilic addition of pyrazoles unsubstituted at a nitrogen atom to the double bond of maleic anhydride
Nam,Grandberg,Sorokin
, p. 1314 - 1316 (2003)
Only one isomer, 5-methyl-3-phenyl-1-pyrazolylsuccinic acid, is formed on addition of 3(5)-methyl-5(3)-phenylpyrazole to the double bond of maleic anhydride.