131202-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131202-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,0 and 2 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131202-44:
(8*1)+(7*3)+(6*1)+(5*2)+(4*0)+(3*2)+(2*4)+(1*4)=63
63 % 10 = 3
So 131202-44-3 is a valid CAS Registry Number.
131202-44-3Relevant articles and documents
A New Synthesis of Pyrroles
Shim, Young Key,Youn, Jung In,Chun, Jae Sang,Park, Tae Ho,Kim, Moon Hwan,Kim, Wan Joo
, p. 753 - 754 (1990)
N-Protected 2,5-dihydro-1H-pyrrole derivatives are transformed into the corresponding pyrroles in high yield by a simple air oxidation or dehydrogenation reaction using tetrachloro-1,4-benzoquinone (p-chloranil), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone
