87733-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87733-69-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,3 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87733-69:
(7*8)+(6*7)+(5*7)+(4*3)+(3*3)+(2*6)+(1*9)=175
175 % 10 = 5
So 87733-69-5 is a valid CAS Registry Number.
87733-69-5Relevant articles and documents
Synthesis of 5-oxo-L-pipecolic acid derivatives by rhodium(II) acetate catalyzed cyclization of diazoketones
Ko, Kwang-Youn,Lee, Kee-In,Kim, Wan-Loo
, p. 6651 - 6652 (2007/10/02)
A convenient synthesis of 5-oxo-L-pipecolic acid derivatives is described. The key step involves the rhodium(II) acetate catalysed N-H insertion reaction of diazoketones, which are derived from L-glutamic acid.
