1847-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1847-92-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,4 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1847-92:
(6*1)+(5*8)+(4*4)+(3*7)+(2*9)+(1*2)=103
103 % 10 = 3
So 1847-92-3 is a valid CAS Registry Number.
1847-92-3Relevant articles and documents
Ipso aromatic substitution from reaction of a carbene with DMAD
Lu, Xiaosong,Warkentin, John
, p. 1483 - 1486 (1999)
An aryloxy(methoxy)carbene reacted which DMAD (dimethyl acetylenedicarboxylate) by overall ipso aromatic substitution.