156264-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156264-67-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,6 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156264-67:
(8*1)+(7*5)+(6*6)+(5*2)+(4*6)+(3*4)+(2*6)+(1*7)=144
144 % 10 = 4
So 156264-67-4 is a valid CAS Registry Number.
InChI:InChI=1/C21H30O2/c1-4-13-11-15-16-5-6-19(23)21(16,3)10-8-17(15)20(2)9-7-14(22)12-18(13)20/h12-13,15-17H,4-11H2,1-3H3/t13-,15-,16-,17-,20+,21-/m0/s1
156264-67-4Relevant academic research and scientific papers
Numazawa, Mitsuteru,Oshibe, Mariko
, p. 1312 - 1319 (1994)
Two series of 6β- and 6α-substituted androst-4-ene-3,17-diones (5 and 6) were synthesized as aromatase inhibitors to gain insights of structure-activity relationships of varying substituents (methyl, ethyl, n-propyl, isopropyl, n-butyl, phenyl, benzyl, vi