93239-56-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93239-56-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,2,3 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 93239-56:
(7*9)+(6*3)+(5*2)+(4*3)+(3*9)+(2*5)+(1*6)=146
146 % 10 = 6
So 93239-56-6 is a valid CAS Registry Number.
93239-56-6Relevant articles and documents
Synthesis of 17-(isocyanotosylmethylene) steroids: precursors to pregnane derivatives
Leusen, Daan van,Leusen, Albert M. van
, p. 393 - 401 (2007/10/02)
The synthesis is described of a series of twenty 17-(isocyanotosylmethylene) steroids 5 from 17-oxo steroids and 4-tolylsulfonylmethyl isocyanide (TosMIC).Furthermore, nine analogous 17-(isocyanosulfonylmethylene) steroids (15-21a) have been prepared usin
