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140640-36-4

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140640-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140640-36-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,4 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 140640-36:
(8*1)+(7*4)+(6*0)+(5*6)+(4*4)+(3*0)+(2*3)+(1*6)=94
94 % 10 = 4
So 140640-36-4 is a valid CAS Registry Number.

140640-36-4Downstream Products

140640-36-4Relevant articles and documents

Catalytic action of azolium salts. IV. Preparations of 4-aroylquinazolines and 4-aroyl-1H-pyrazolo[3,4-d]pyrimidines by catalytic action of 1,3-dimethylimidazolium iodide

Miyashita,Matsuda,Suzuki,Iwamoto,Higashino

, p. 2017 - 2022 (2007/10/02)

The ability of 1,3-dimethylimidazolium iodide (1) to catalyze the aroylation of the chloroheteroarenes 4-8 with arenecarbaldehydes 3 as sources of the aroyl groups was examined in order to develop a preparative method of aroylheteroarenes. In the presence

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