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104687-90-3

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104687-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104687-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,6,8 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 104687-90:
(8*1)+(7*0)+(6*4)+(5*6)+(4*8)+(3*7)+(2*9)+(1*0)=133
133 % 10 = 3
So 104687-90-3 is a valid CAS Registry Number.

104687-90-3Relevant academic research and scientific papers

Effective high-pressure cleavage of sterically hindered steroid esters

Kroszczynski, Wojciech,Olszewska, Ewa,Salanski, Piotr,Jurczak, Janusz

, p. 1488 - 1492 (2004)

A simple and effective method to deprotect of sterically hindered steroid esters is described. Deprotection was carried out in MeOH in the presence of a catalytic amount of Et3N under high-pressure conditions. Enzymatic, anionite, and high-pressure methods are compared.

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