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681442-12-6

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681442-12-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681442-12-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,4,4 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 681442-12:
(8*6)+(7*8)+(6*1)+(5*4)+(4*4)+(3*2)+(2*1)+(1*2)=156
156 % 10 = 6
So 681442-12-6 is a valid CAS Registry Number.

681442-12-6Downstream Products

681442-12-6Relevant articles and documents

Novel, efficient, and green procedure for the Knoevenagel condensation catalyzed by diammonium hydrogen phosphate in water

Balalaie, Saeed,Bararjanian, Morteza,Hekmat, Shohreh,Salehi, Peyman

, p. 2549 - 2557 (2006)

Knoevenagel condensation of various aromatic and heteroaromatic aldehydes with active methylene compounds like methyl and ethyl cyanoacetate, malononitrile, and cyanoacetamide proceeds smoothly with stirring in water in the presence of 4 mol% of diammoniu

Knoevenagel condensation catalyzed by K2NiP2O 7. Synthesis of (E)-methyl-α-cyanocinnamates in high yields

El Maadi, Aicha,Matthiesen, Chance L.,Ershadi, Philip,Baker, Jennifer,Herron, Derrick M.,Holt, Elizabeth M.

, p. 757 - 763 (2007/10/03)

The Knoevenagel reaction of benzaldehyde and several chloroderivatives with methyl cyanoacetate catalyzed by K2NiP2O7 leads to methyl (E)-α-cyanocinnamate derivatives in 40 min with yields of 71.65-83.45%. Pure products ar

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