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66221-74-7

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66221-74-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66221-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,2,2 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 66221-74:
(7*6)+(6*6)+(5*2)+(4*2)+(3*1)+(2*7)+(1*4)=117
117 % 10 = 7
So 66221-74-7 is a valid CAS Registry Number.

66221-74-7Relevant articles and documents

SYNTHESIS OF 5-ARYL- AND 5-ALKYL-4-ETHOXYCARBONYL-2-METHYLTHIO-1,3-THIAZOLES FROM DIMETHYL N-(ETHOXY-CARBONYLMETHYL)IMINODITHIOCARBONATE AND DITHIOESTERS

Alonso, G.,Alvarez-Ibarra, C.,Orellana, G.,Quiroga, M. L.

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

In this paper we give account of an efficient synthesis of 5-aryl- and 5-alkyl-4-ethoxycarbonyl-2-methylthio-1,3-thiazoles from dimethyl N-(ethoxycarbonylmethyl)iminodithiocarbonate and dithioesters.

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