154492-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 154492-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,4,9 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 154492-40:
(8*1)+(7*5)+(6*4)+(5*4)+(4*9)+(3*2)+(2*4)+(1*0)=137
137 % 10 = 7
So 154492-40-7 is a valid CAS Registry Number.
154492-40-7Relevant articles and documents
Aryl radical cyclisation approach to highly substituted oxindoles related to mitomycins
Jones,Storey
, p. 7797 - 7798 (2007/10/02)
Radical cyclisation of the hexa-substituted aromatic compounds 8 and 17 leads to highly substituted oxindoles 9 and 18 respectively in excellent yields. Oxindole 18 carries the correct substitution pattern for ring-A of mitomycin A.