133116-46-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133116-46-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,1 and 6 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133116-46:
(8*1)+(7*3)+(6*3)+(5*1)+(4*1)+(3*6)+(2*4)+(1*6)=88
88 % 10 = 8
So 133116-46-8 is a valid CAS Registry Number.
133116-46-8Relevant articles and documents
Synthesis of some 3-arylfuro[3,2-c] coumarins
Brahmbhatt,Hirani,Pandya,Pandya
, p. 233 - 235 (2007/10/03)
Various 3-arylfuro[3,2-c]coumarins 3a-t have been synthesised by condensing 4-hydroxycoumarins 1a-d with β-nitrostyrenes 2a-e in the presence of piperidine/methanol under base catalysed Nef reaction conditions.
