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3-benzoyl-3-methyl-1-phenylpentane-1,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

119220-05-2

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119220-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119220-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,2,2 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 119220-05:
(8*1)+(7*1)+(6*9)+(5*2)+(4*2)+(3*0)+(2*0)+(1*5)=92
92 % 10 = 2
So 119220-05-2 is a valid CAS Registry Number.

119220-05-2Relevant articles and documents

THE SYNTHESIS AND CHEMISTRY OF AZOLENINES. PART 12. ISOLATION OF INTERMEDIATE 2-HYDROXY-3,4-DIHYDRO-2H-PYRROLES IN THE PAAL-KNORR 1H-PYRROLE SYNTHESIS.

Chiu, Pak-Kan,Sammes, Michael P.

, p. 3531 - 3538 (2007/10/02)

Treatment of 1,4-diketones with liquid ammonia gives high yields of isolable 2-hydroxy-3,4-dihydro-2H-pyrrole intermediates.These intermediates, which do not appear to have been observed previously in the Paal-Knorr synthesis with ammonia, have been fully characterized by i.r. and 1H and 13C n.m.r. spectroscopy; in most cases they decompose quantitatively into 1H-pyrroles on standing.The intermediate from hexane-2,4-dione may also be prepared using concentrated aqueous ammonia.

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