90212-03-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90212-03-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,1 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90212-03:
(7*9)+(6*0)+(5*2)+(4*1)+(3*2)+(2*0)+(1*3)=86
86 % 10 = 6
So 90212-03-6 is a valid CAS Registry Number.
InChI:InChI=1/C20H28O2S/c1-19-9-8-17-15(16(19)5-6-18(19)22)4-3-13-11-14(21)7-10-20(13,17)12-23-2/h11,15-17H,3-10,12H2,1-2H3/t15-,16-,17-,19-,20+/m0/s1
90212-03-6Relevant articles and documents
Steroidal C-19 Sulphur and Nitrogen Derivatives designed as Aromatase Inhibitors
Wright, J. Neville,Calder, Michael R.,Akhtar, Muhammad
, p. 1733 - 1735 (1985)
The discovery that in the steroidal compounds (6) and (15) iodine in the 19-position is smoothly displaced by reactive nucleophiles (CN(1-), MeSO2S(1-), N3(1-)) without rearrangement was exploited in the synthesis of 19-methylthio-4-androstene-3,17-dione (14) which was shown to inhibit aromatase by co-ordination of the steroidal sulphur atom to the haem-iron of cytochrome P-450.