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63140-99-8

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63140-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 63140-99-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,1,4 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 63140-99:
(7*6)+(6*3)+(5*1)+(4*4)+(3*0)+(2*9)+(1*9)=108
108 % 10 = 8
So 63140-99-8 is a valid CAS Registry Number.

63140-99-8Downstream Products

63140-99-8Relevant articles and documents

Expanding the scope of donor/acceptor carbenes to N -phthalimido donor groups: Diastereoselective synthesis of 1-cyclopropane α-amino acids

Alford, Joshua S.,Davies, Huw M. L.

, p. 6020 - 6023 (2013/02/23)

Warming of 4-phthalimido-N-mesyl-1,2,3-triazole in the presence of alkenes followed by silica gel induced hydrolysis results in a highly diastereoselective and catalyst-free entry to N-phthalimidocyclopropanecarboxaldehydes.

SYNTHESIS OF E AND Z 1-AMINO-2-ARYL(ALKYL)-CYCLOPROPANECARBOXYLIC ACID via MELDRUM DERIVATIVES

Izquierdo, M. L.,Arenal, I.,Bernabe, M.,Alvarez, E. Fernandez

, p. 215 - 220 (2007/10/02)

The reaction of 5-arylidene(alkylidene)-2,2-dimethyl-1,3-dioxane-4,6-diones (1) (Meldrum's acid derivatives) with dimethylsulfoxonium methylide gave 1-aryl(alkyl)-6,6-dimethyl-4,8-dioxo-5,7-dioxaspiro octanes (2) which , on treatment with sodium meth

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