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(Z)-3,4-dimethyl-5-<(4-methylphenyl)bromomethylene>-3-pyrrolin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90703-94-9

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90703-94-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90703-94-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,0 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90703-94:
(7*9)+(6*0)+(5*7)+(4*0)+(3*3)+(2*9)+(1*4)=129
129 % 10 = 9
So 90703-94-9 is a valid CAS Registry Number.

90703-94-9Downstream Products

90703-94-9Relevant academic research and scientific papers

Reactivity of Pyrrole Pigments. Part 5: Electrophilic Substitution - Nitration and Bromination - of Some Pyrromethenones and 5-Arylmethylene-3,4-dimethyl-3-pyrrolin-2-ones

Daroca, Agustin,Merce, Ramon,Ribo, Josep M.,Trull, Francesc,Valles, Asuncion

, p. 357 - 374 (2007/10/02)

Some 5-arylmethylene-3,4-dimethyl-3-pyrrolin-2-ones react with both bromine and nitronium tetrafluoroborate (NO2BF4) to give 5-(aryl)nitromethylene-3-pyrrolin-2-ones and 5-(aryl)bromomethylene-3-pyrrolin-2-ones, respectively.The use of bromine in methanol

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