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90951-92-1

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90951-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90951-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,5 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90951-92:
(7*9)+(6*0)+(5*9)+(4*5)+(3*1)+(2*9)+(1*2)=151
151 % 10 = 1
So 90951-92-1 is a valid CAS Registry Number.

90951-92-1Downstream Products

90951-92-1Relevant articles and documents

Deamination Reactions, 41. Reactions of Aliphatic Diazonium Ions and Carbocations with Ethers

Kirmse, Wolfgang,Jansen, Ulrich

, p. 2607 - 2625 (2007/10/02)

Aliphatic diazonium ions and carbocations were generated by deacylation of appropriate nitrosoureas (1, 5, 9) in alcohol-ether mixtures or in 2-alkoxyethanols.Ethers were generally inferior to alcohols in capturing cationic intermediates.Formation of trialkyloxonium ions led to alkyl exchange or ring opening.The observed reactivity orders were n-butyl > isobutyl for the diazonium ions, allyl > sec-butyl > tert-butyl for the carbocations, methoxy > ethoxy and oxirane > oxetane > tetrahydrofuran for the ethers, indicating the predominance of steric effects.Neighboring group participation in 4-methoxy-1-butanediazonium ions (58) and 4,5-epoxy-1-pentanediazonium ions (74) was detectable but inefficient ( 20percent of cyclic oxonium ions).

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