64789-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64789-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,7,8 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 64789-41:
(7*6)+(6*4)+(5*7)+(4*8)+(3*9)+(2*4)+(1*1)=169
169 % 10 = 9
So 64789-41-9 is a valid CAS Registry Number.
64789-41-9Relevant articles and documents
Some Applications of the Curtius Rearrangement
Moutevelis-Minakakis, Panagiota,Photaki, Iphigenia
, p. 2277 - 2282 (2007/10/02)
Pairs of optically pure enantiomers of substituted 1,1-diamines have been prepared from the azides of L-amino-acids via the Curtius rearrangement.This synthesis is based on the interchange of two groups attached to the asymmetrically substituted tetrahedr