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122778-23-8

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122778-23-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122778-23-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,7,7 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 122778-23:
(8*1)+(7*2)+(6*2)+(5*7)+(4*7)+(3*8)+(2*2)+(1*3)=128
128 % 10 = 8
So 122778-23-8 is a valid CAS Registry Number.

122778-23-8Relevant articles and documents

Asymmetric Syntheses of Chiral Propane-1,3-diols Starting from Malonic Acid

Ihara, Masataka,Takahashi, Masanobu,Taniguchi, Nobuaki,Yasui, Ken,Fukumoto, Keiichiro,Kametani, Tetsuji

, p. 897 - 903 (2007/10/02)

Syntheses of chiral intermediates having one tertiary asymmetric centre were carried out via chiral half-esters of monoalkylmalonic acids.The menthyl half-ester of ethylmalonic acid afforded a single diastereoisomer through crystallisation-induced asymmetric transformation (second-order asymmertic transformation).Furthermore enantioselective preparation of unsymmertical propane-1,3-diol derivatives was achieved by the use of 8-phenylmenthyl half-esters.

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