236743-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 236743-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,6,7,4 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 236743-97:
(8*2)+(7*3)+(6*6)+(5*7)+(4*4)+(3*3)+(2*9)+(1*7)=158
158 % 10 = 8
So 236743-97-8 is a valid CAS Registry Number.
236743-97-8Relevant articles and documents
Enantioselective synthesis of saframycin A and evaluation of antitumor activity relative to ecteinascidin/saframycin hybrids.
Martinez,Corey
, p. 75 - 77 (1999)
[formula: see text] A short synthesis of saframycin A is described which begins with a readily available intermediate previously utilized for the total synthesis of ecteinascidin 743. A key step in this synthesis is the use of 1-fluoro-3,5-dichloropyridin
