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1239969-40-4

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1239969-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239969-40-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,9,6 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1239969-40:
(9*1)+(8*2)+(7*3)+(6*9)+(5*9)+(4*6)+(3*9)+(2*4)+(1*0)=204
204 % 10 = 4
So 1239969-40-4 is a valid CAS Registry Number.

1239969-40-4Downstream Products

1239969-40-4Relevant articles and documents

Metal assisted synthesis of mono and diamino substituted pyridines

Koley, Moumita,Schnürch, Michael,Mihovilovic, Marko D.

supporting information; experimental part, p. 4169 - 4178 (2011/06/26)

A microwave assisted Buchwald-Hartwig amination protocol is reported for a series of dihalopyridine precursors. Using this procedure, selective substitution of one halogen by aryl or alkylamines is possible in very short time, usually 30 min. Mild base (K2CO3) can be used successfully, which broadens the substrate scope. The second halogen can then be substituted using alkylamines under nucleophilic substitution condition or via a Suzuki-Miyaura cross-coupling reaction. The target compounds are potential inducers of cardiomyogenesis as innovative approach in regenerative medicine.

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