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1377667-20-3

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1377667-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1377667-20-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,7,6,6 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1377667-20:
(9*1)+(8*3)+(7*7)+(6*7)+(5*6)+(4*6)+(3*7)+(2*2)+(1*0)=203
203 % 10 = 3
So 1377667-20-3 is a valid CAS Registry Number.

1377667-20-3Downstream Products

1377667-20-3Relevant academic research and scientific papers

Stereoselective synthesis and hormonal activity of novel dafachronic acids and naturally occurring steroids isolated from corals

Saini, Ratni,Boland, Sebastian,Kataeva, Olga,Schmidt, Arndt W.,Kurzchalia, Teymuras V.,Kn?lker, Hans-Joachim

scheme or table, p. 4159 - 4163 (2012/07/14)

A stereoselective synthesis of (25S)-Δ1-, (25S)-Δ1,4-, (25S)-Δ1,7-, (25S)- Δ8(14)-, (25S)-Δ4,6,8(14)-dafachronic acid, methyl (25S)-Δ1,4-dafachronate and (25S)-5α-hydroxy-3,6- dioxocholest-7-en-26-oic acid is described. (25S)-Δ1,4- Dafachronic acid and its methyl ester are natural products isolated from corals and have been obtained by synthesis for the first time. (25S)-5α-Hydroxy- 3,6-dioxocholest-7-en-26-oic acid represents a promising synthetic precursor for cytotoxic marine steroids.

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