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40979-03-1

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40979-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40979-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,7 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40979-03:
(7*4)+(6*0)+(5*9)+(4*7)+(3*9)+(2*0)+(1*3)=131
131 % 10 = 1
So 40979-03-1 is a valid CAS Registry Number.

40979-03-1Relevant articles and documents

Regioselective monobromination of substituted phenols in the presence of β-cyclodextrin

Suresh, Palaniswamy,Annalakshmi, Subramanian,Pitchumani, Kasi

, p. 4959 - 4967 (2008/02/02)

Cyclodextrin acts as a restricting nanovessel to enhance regioselectivity in bromination of substituted phenols such as 3-nitrophenol, 2-chlorophenol, 3-chlorophenol, and 4-chlorophenol. In contrast to solution bromination, cyclodextrin facilitates regioselective monobromination and formation of polybrominated products are substantially reduced. Selectivities in brominations are also observed in water and in the solid state. The observed results are rationalized on the basis of specific modes of inclusion of substituted phenols inside the cyclodextrin cavity and find strong support from energy minimization studies and 1H-1H NOESY.

Halogenation using quaternary ammonium polyhalides. XX. Bromination of phenols with polymer-bound benzyltrimethylammonium tribromide

Kakinami,Suenaga,Yamaguchi,Okamoto,Kajigaeshi

, p. 3373 - 3375 (2007/10/02)

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