69267-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69267-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,2,6 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 69267-03:
(7*6)+(6*9)+(5*2)+(4*6)+(3*7)+(2*0)+(1*3)=154
154 % 10 = 4
So 69267-03-4 is a valid CAS Registry Number.
69267-03-4Relevant 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.
