78793-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78793-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,7,9 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 78793-18:
(7*7)+(6*8)+(5*7)+(4*9)+(3*3)+(2*1)+(1*8)=187
187 % 10 = 7
So 78793-18-7 is a valid CAS Registry Number.
78793-18-7Relevant academic research and scientific papers
TOTALLY SYNTHETIC STEROID HETEROCYCLES. PART X. SYNTHESIS OF RACEMIC A-NOR-3,16-DITHIA- AND 2-METHYL-A-NOR-3-OXA-16-THIA-D-HOMO-1,5(10),8,14-ESTRATETRAEN-17α-OLS
Terasawa, T.,Okada, T.
, p. 445 - 454 (2007/10/02)
As a part of synthetic modifications directed toward biologically active 16-thia-D-homoestrogens, synthesis of the title steroids via the Torgov-Wendler route is described.
