184435-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 184435-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,4,3 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 184435-18:
(8*1)+(7*8)+(6*4)+(5*4)+(4*3)+(3*5)+(2*1)+(1*8)=145
145 % 10 = 5
So 184435-18-5 is a valid CAS Registry Number.
InChI:InChI=1/C19H24O3/c1-18-8-3-4-14(20)13(18)10-15(21)17-11-5-6-16(22)19(11,2)9-7-12(17)18/h10-12,17H,3-9H2,1-2H3/t11-,12-,17-,18+,19-/m0/s1
184435-18-5Relevant articles and documents
Syntheses of Androst-5-ene-4,7,17-trione and A-Norandrost-5-ene-3,7,17-trione
Hanson, James R.,Kiran, Ismail,Masarwah, Natheer F.,Uyanik, Cavit
, p. 2420 - 2434 (2007/10/03)
Syntheses are described of the aromatase inhibitor, androst-5-ene-4,7,17-trione, its 17β-acetate and A-nor analogue, A-norandrost-5-ene-3,7,17-trione, starting from dehydroisoandrosterone and testosterone.