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1631134-21-8

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1631134-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1631134-21-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,1,1,3 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1631134-21:
(9*1)+(8*6)+(7*3)+(6*1)+(5*1)+(4*3)+(3*4)+(2*2)+(1*1)=118
118 % 10 = 8
So 1631134-21-8 is a valid CAS Registry Number.

1631134-21-8Upstream product

1631134-21-8Downstream Products

1631134-21-8Relevant articles and documents

A concise total synthesis of puberulic acid, a potent antimalarial agent

Sennari, Goh,Hirose, Tomoyasu,Iwatsuki, Masato,Omura, Satoshi,Sunazuka, Toshiaki

supporting information, p. 8715 - 8718 (2014/07/22)

Efficient and practical total synthesis of puberulic acid has been accomplished via 8 steps, with 54% overall yield, and only two C-C bond formations, without the introduction of oxygen atoms into the core skeleton. Construction of the tropolone framework as the key transformation was achieved by multi-tandem oxidation of the aliphatic-triol, from d-(+)-galactose as the starting material.

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