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125037-40-3

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125037-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125037-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,0,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 125037-40:
(8*1)+(7*2)+(6*5)+(5*0)+(4*3)+(3*7)+(2*4)+(1*0)=93
93 % 10 = 3
So 125037-40-3 is a valid CAS Registry Number.

125037-40-3Upstream product

125037-40-3Relevant articles and documents

Tetrazole Compounds. 1. 1-Aryl-5-(2-dialkylamino-vinyl)-1H-tetrazoles from 3-Chloropropeniminium Salts

Fischer, G. W.,Herrmann, M.

, p. 963 - 973 (2007/10/02)

3-Chloropropeniminium salts 1 react with excess sodium azide in refluxing alcohols to give mainly 1-aryl-5-(2-dialkylamino-vinyl)-1H-tetrazoles 3; in minor quantities isomeric 5-aryl-1-(2-dialkylamino-vinyl)-1H-tetrazoles 4 are formed.The reaction involves splitting off N2 and C -> N migration of the aryl and dialkylaminovinyl group, respectively.A cross-over experiment indicated that the rearrangement step proceeds intramolecularly. - The i.r., u.v., and n.m.r. spectroscopic data of the novel 1H-tetrazoles 3 as well as the u.v. spectra of some new starting products 1k-v are reported.

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