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137231-90-4

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137231-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137231-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137231-90:
(8*1)+(7*3)+(6*7)+(5*2)+(4*3)+(3*1)+(2*9)+(1*0)=114
114 % 10 = 4
So 137231-90-4 is a valid CAS Registry Number.

137231-90-4Relevant articles and documents

Studies on nepalese crude drugs. XIV. New flavonoids from the root of Scutellaria prostrata Jacq. ex Benth.

Kikuchi,Miyaichi,Tomimori

, p. 1466 - 1472 (1991)

Six flavonoids, named scutellaprostins A, B, C, D, E and F, were isolated from the root of Scutellaria prostrata Jacq. ex Benth. (Labiatae). Their structures were established to be (2R*,3R*)-6-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-2-hydroxymethyl-9- pheny

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