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138772-42-6

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138772-42-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138772-42-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,7 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138772-42:
(8*1)+(7*3)+(6*8)+(5*7)+(4*7)+(3*2)+(2*4)+(1*2)=156
156 % 10 = 6
So 138772-42-6 is a valid CAS Registry Number.

138772-42-6Downstream Products

138772-42-6Relevant articles and documents

Structure and synthesis of a new butanolide from a marine actinomycete

Pathirana, Charles,Dwight, Ryan,Jensen, Paul R.,Fenical, William,Delgado, Antonio,Brinen, Linda S.,Clardy, Jon

, p. 7001 - 7004 (1991)

The novel butanolide 2, (1′R, 2S, 4S)-2-(1-hydroxy-6-methylheptyl)-4-hydroxymethyl-butanolide, was isolated from the culture broth of a marine actinomycete. The structure of 2 was assigned by analysis of spectral data and the absolute configuration was determined by synthesis.

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