81608-60-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81608-60-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,0 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81608-60:
(7*8)+(6*1)+(5*6)+(4*0)+(3*8)+(2*6)+(1*0)=128
128 % 10 = 8
So 81608-60-8 is a valid CAS Registry Number.
InChI:InChI=1/C18H18O3/c1-18-9-8-11-10-4-6-15(19)17(21)13(10)3-2-12(11)14(18)5-7-16(18)20/h2-4,6,14,19,21H,5,7-9H2,1H3/t14-,18-/m0/s1
81608-60-8Relevant articles and documents
Synthesis of 4- and 16α-hydroxylated equine estrogens
Ikegawa, Shigeo,Kurosawa, Takao,Tohma, Masahiko
, p. 250 - 255 (2007/10/02)
4-Hydroxyequilin, 4-hydroxyequilenin, and 16α-hydroxyequilenin were synthesized as authentic specimens for the metabolic studies of equine estrogens.The synthetic route leading to the 4-hydroxylated compounds was started from o-vanillin, which was transfo
