139558-66-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139558-66-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,5 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139558-66:
(8*1)+(7*3)+(6*9)+(5*5)+(4*5)+(3*8)+(2*6)+(1*6)=170
170 % 10 = 0
So 139558-66-0 is a valid CAS Registry Number.
139558-66-0Relevant articles and documents
The Mechanism of Nitration by 4-Methyl-4-nitro-2,3,5,6-tetrabromocyclohexa-2,5-dienone
Coombes, Robert G.,Ridd, John H.
, p. 174 - 175 (2007/10/02)
Nitration of phenol by 4-methyl-4-nitro-2,3,5,6-tetrabromocyclohexa-2,5-dienone in diethyl ether is a radical process involving reaction between the phenoxyl radical and NO2 radical that has escaped from a radical pair in which it was formed by homolytic