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99955-80-3

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99955-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99955-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99955-80:
(7*9)+(6*9)+(5*9)+(4*5)+(3*5)+(2*8)+(1*0)=213
213 % 10 = 3
So 99955-80-3 is a valid CAS Registry Number.

99955-80-3Relevant articles and documents

Decarboxylative thioamidation of arylacetic and cinnamic acids: A new approach to thioamides

Guntreddi, Tirumaleswararao,Vanjari, Rajeshwer,Singh, Krishna Nand

supporting information, p. 3624 - 3627 (2014/08/05)

A new decarboxylative strategy has been developed for the synthesis of thioamides via a three-component reaction involving arylacetic or cinnamic acids, amines and elemental sulfur powder, without the need of a transition metal and an external oxidant.

Reactions of N,N-(dialkyl)arylthioacetamides with dialkyl acetylenedicarboxylates

Kosterina, M. F.,Morzherin, Yu. Yu.,Tkachev, A. V.,Rybalova, T. V.,Gatilov, Yu. V.,Bakulev, V. A.

, p. 653 - 658 (2007/10/03)

2-(Alkoxycarbonylmethylidene)-4-aryl-5-(dialkylamino)thiophen-3(2H)-ones were synthesized by condensation of N,N-(dialkyl)arylthioacetamides with dialkyl acetylenedicarboxylates. Intermediate substituted vinylic sulfides were isolated. When heated or in t

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