59157-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59157-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,1,5 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 59157-67:
(7*5)+(6*9)+(5*1)+(4*5)+(3*7)+(2*6)+(1*7)=154
154 % 10 = 4
So 59157-67-4 is a valid CAS Registry Number.
InChI:InChI=1/C36H52O3/c1-7-25(23(2)3)14-13-24(4)29-15-16-30-33-31(18-20-36(29,30)6)35(5)19-17-28(21-27(35)22-32(33)37)39-34(38)26-11-9-8-10-12-26/h8-12,22-25,28-31,33H,7,13-21H2,1-6H3/t24-,25-,28+,29-,30+,31+,33+,35+,36-/m1/s1
59157-67-4Relevant academic research and scientific papers
ALLYLIC OXIDATION OF Δ5-STEROIDS WITH PYRIDINIUM CHLOROCHROMATE (PCC) AND PYRIDINIUM DICHROMATE (PDC)
Parish, Edward J.,Wei, Tsao-Yi
, p. 1227 - 1234 (2007/10/02)
Pyridinium chlorochromate (PCC), in refluxing benzene, or dimethyl sulfoxide, and pyridinium dichromate (PDC) in pyridine, have been found to be effective reagents for the allylic oxidation of Δ5-steroids to yield the corresponding α,β - unsatu