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5717-05-5

5717-05-5

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5717-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5717-05-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,1 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5717-05:
(6*5)+(5*7)+(4*1)+(3*7)+(2*0)+(1*5)=95
95 % 10 = 5
So 5717-05-5 is a valid CAS Registry Number.

5717-05-5Upstream product

5717-05-5Downstream Products

5717-05-5Relevant articles and documents

PREPARATION AND ABSOLUTE CONFIGURATION AT C(22) OF 21,26,27-TRINOR-5α-CHOLESTANE-22,25-DIOL DERIVATIVES

Pouzar, Vladimir,Vasickova, Sona,Drasar, Pavel,Cerny, Ivan,Havel, Miroslav

, p. 2423 - 2436 (2007/10/02)

Reaction of 5α-pregnan-21-al (V), obtained from ester of the corresponding acid III via the alcohol IV, with lithium salt of 1-methoxymethoxy-2-propyne afforded both the isomeric 25-methoxymethoxy-21,26,27-trinor-5α-cholest-23-yn-22-ols (VI and VII) which

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