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445221-18-1

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445221-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 445221-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,5,2,2 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 445221-18:
(8*4)+(7*4)+(6*5)+(5*2)+(4*2)+(3*1)+(2*1)+(1*8)=121
121 % 10 = 1
So 445221-18-1 is a valid CAS Registry Number.

445221-18-1Relevant articles and documents

Alternative products in one-pot reaction of benzylidenemalononitrile, N-methyl-2-thiocarbamoylacetamide, and ω-bromoacetophenone

Krauze,Vi?ums,Sīle,Duburs

, p. 653 - 657 (2008/12/21)

N-Methyl-2-benzoylmethylsulfanyl-4-phenylnicotinamide and N-methyl-2-(4-phenyl-1,3-thiazol-2-yl)-acetamide have been obtained as alternative products to the desired N-methyl-2,3-dihydro-7H-thiazolo[3,2-a] pyridine-8-carboxamide by a one-pot cyclocondensation of benzylidenemalononitrile, N-methyl-2-thiocarbamoylacetamide, piperidine, and ω-bromoacetophenone. 2-Amino-1-methyl-6-oxo-4-phenyl-5-(4-phenyl-1,3- thiazol-2-yl)-1,6-dihydropyridine-3-carbonitrile has been obtained as main product by treatment of benzylidenemalononitrile with N-methyl-2-(1,3-thiazol-2- yl)acetamide.

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