172666-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172666-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,6,6 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 172666-19:
(8*1)+(7*7)+(6*2)+(5*6)+(4*6)+(3*6)+(2*1)+(1*9)=152
152 % 10 = 2
So 172666-19-2 is a valid CAS Registry Number.
172666-19-2Relevant articles and documents
An Interesting C-Ring Contraction in Paclitaxel (Taxol)
Chen, Shu-Hui,Huang, Stella,Roth, Gregory P.
, p. 8933 - 8936 (2007/10/02)
An interesting pinacol rearrangement involving 7-epi-6α-tosylate/triflate-paclitaxel derivatives (6) and (10), with the formation of five-membered C-ring containing analogs (7) and (11), is described.
