77050-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77050-53-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,5 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77050-53:
(7*7)+(6*7)+(5*0)+(4*5)+(3*0)+(2*5)+(1*3)=124
124 % 10 = 4
So 77050-53-4 is a valid CAS Registry Number.
77050-53-4Relevant academic research and scientific papers
SYNTHESIS OF 14-DEOXY-14α-STROPHANTHIDIN
Kocovsky, Pavel
, p. 2998 - 3007 (2007/10/02)
A seventeen step synthesis of 3β,5-dihydroxy-19-oxo-5β,14α-card-20(22)-enolide (II, title compound) from 3β-benzoyloxy-5-pregnen-20-one (IV) is described.Characteristic features of this approach are the protection of the 19-hydroxy group as methyl ether,
