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1,3-Benzodioxole, 4,5,6,7-tetrabromo-2,2-diphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90420-33-0

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90420-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90420-33-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,2 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90420-33:
(7*9)+(6*0)+(5*4)+(4*2)+(3*0)+(2*3)+(1*3)=100
100 % 10 = 0
So 90420-33-0 is a valid CAS Registry Number.

90420-33-0Downstream Products

90420-33-0Relevant academic research and scientific papers

PHOSPHONIUM YLIDS, IV. The Reaction of Tetrahalo-o-benzoquinones with Diphenylmethylenetriphenylphosphorane and Fluorenylidenetriphenylphosphoranes. An Anomalous Behavior of the Wittig Reagent

Sidky, M. M.,Boulos, L. S.

, p. 27 - 30 (2007/10/02)

A novel synthesis of 1,3-dioxoles (6a), (6b) and (7a-d) by the action of diphenylmethylenetriphenylphosphorane (1) and fluorenylidenetriphenylphosphoranes (2) on tetrahalo-o-benzoquinones (5) is reported.A possible reaction mechanism is considered and the

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