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135273-20-0

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135273-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135273-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,7 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 135273-20:
(8*1)+(7*3)+(6*5)+(5*2)+(4*7)+(3*3)+(2*2)+(1*0)=110
110 % 10 = 0
So 135273-20-0 is a valid CAS Registry Number.

135273-20-0Downstream Products

135273-20-0Relevant articles and documents

New Triarylmethyl Derivatives: "Blocking Groups" for Rotaxanes and Polyrotaxanes

Gibson, Harry W.,Lee, Sang-Hun,Engen, Paul T.,Lecavalier, Pierre,Sze, Jean,et al.

, p. 3748 - 3756 (2007/10/02)

Five triarylcarbinols (8, three new compounds) were synthesized.Using carbanion chemistry the triarylmethanes (13, five new compounds) made by formic acid reduction of 8 were converted to the ω,ω,ω-triarylalkanols (15, three new compounds) and thence to the chloro (17) and iodo (18) derivatives (five new compounds).Via carbocation chemistry p-(triarylmethyl)phenols (20, two new compounds) and aniline (21, new compound) were produced.Alkylation of 20 yielded alcohol (22), benzylic bromide (23), and carboxy (25) functionalized derivatives.The alcohol, halide, phenol, aniline, and carboxylic acid functionalized triarylmethane compounds are suitable end blocking groups for rotaxanes and polyrotaxanes.

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