40855-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40855-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40855-80:
(7*4)+(6*0)+(5*8)+(4*5)+(3*5)+(2*8)+(1*0)=119
119 % 10 = 9
So 40855-80-9 is a valid CAS Registry Number.
40855-80-9Relevant articles and documents
Epalons: 6-substituted derivatives of 7-norepiallopregnanolone
Kasal, Alexander
, p. 3559 - 3565 (2000)
The target compounds (3α-hydroxy-5,6-epoxy-7-nor-5α-pregnan-20-one, 3α-hydroxy-5,6β-epoxy-7-nor-5β-pregnan-20-one and 3α-hydroxy-7-nor-5α- pregnane-6,20-dione) were prepared from 5,6β-dihydroxy-20-oxo-5α-pregnan- 3β-yl acetate via the corresponding 5,6-se
