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1208940-88-8

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1208940-88-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1208940-88-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,8,9,4 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1208940-88:
(9*1)+(8*2)+(7*0)+(6*8)+(5*9)+(4*4)+(3*0)+(2*8)+(1*8)=158
158 % 10 = 8
So 1208940-88-8 is a valid CAS Registry Number.

1208940-88-8Relevant articles and documents

Isolation of Ugi four-component condensation primary adducts: A straightforward route to isocoumarins

Faggi, Cristina,Garcia-Valverde, Maria,Marcaccini, Stefano,Menchi, Gloria

supporting information; experimental part, p. 788 - 791 (2010/04/06)

(Chemical Equation Presented) Ugi four-component condensation (Ugi-4CC) between 2-formylbenzoic acid, phenacylamine dimethyl acetal, and isocyanides afforded 1H-isochromen-1-ones (isocoumarins). These products, where structure corresponds to the tautomeric enediamine form of the Ugi-4CC primary adducts, were stable enough to allow their isolation and characterization. Stable isocoumarins were also obtained by employing anilines as the amino component In the Ugi four-component condensation.

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