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toluene-4-sulfonic acid 2-benzyloxymethyl-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

319914-99-3

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319914-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 319914-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,9,9,1 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 319914-99:
(8*3)+(7*1)+(6*9)+(5*9)+(4*1)+(3*4)+(2*9)+(1*9)=173
173 % 10 = 3
So 319914-99-3 is a valid CAS Registry Number.

319914-99-3Relevant articles and documents

Synthesis and stereochemistry of insect derived spiroacetals with branched carbon skeletons

Tu,Huebener,Zhang,Moore,Fletcher,Hayes,Dettner,Francke,McErlean,Kitching

, p. 1956 - 1978 (2000)

About thirty constitutionally different spiroacetals have been characterised from insects but only three have branched carbon skeletons. Two are based on the 1,7-dioxaspiro[5.5]undecane system and are certain stereoisomers of the 2,4,8-trimethyl derivative, from the aposematic shield bug, Cantao parentum (White), and a 2,2,8-trimethyl derivative from the rove beetle, Ontholestes murinus (L). The 1,6-dioxaspiro[4.5]decane system is represented by a stereoisomer of the 2,3,7-trimethyl derivative in the Cantao species. The elucidation of their structures and stereochemistry by spectroscopy, synthesis and enantioselective gas chromatography is described.

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