136558-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136558-74-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,5 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136558-74:
(8*1)+(7*3)+(6*6)+(5*5)+(4*5)+(3*8)+(2*7)+(1*4)=152
152 % 10 = 2
So 136558-74-2 is a valid CAS Registry Number.
136558-74-2Relevant articles and documents
Synthesis of Functionalized N-Methylpyrroles
Barrero, A. F.,Sanchez, J. F.,Oltra, J. E.,Teva, D.
, p. 939 - 944 (2007/10/02)
The preparation of some new N-methylpyrroles is shown.These heterocyclic compounds were used to synthesize polyenic substances with polysubstituted pyrrole rings.