143236-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143236-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,2,3 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143236-63:
(8*1)+(7*4)+(6*3)+(5*2)+(4*3)+(3*6)+(2*6)+(1*3)=109
109 % 10 = 9
So 143236-63-9 is a valid CAS Registry Number.
143236-63-9Relevant academic research and scientific papers
Synthetic Investigations of Rapamycin. 1. Synthesis of a C10-C21 Fragment
Meyer, Stephanie D.,Miwa, Tetsuo,Nakatsuka, Masashi,Schreiber, Stuart L.
, p. 5058 - 5060 (2007/10/02)
Phosphine oxide 2, representing the C10-C21 portion of rapamycin, was stereoselectively synthesized and was demonstrated to undergo a Horner-Wittig reaction to form triene 25 as an 8:1 mixture of trans-cis isomers.
