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1649-95-2

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1649-95-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1649-95-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1649-95:
(6*1)+(5*6)+(4*4)+(3*9)+(2*9)+(1*5)=102
102 % 10 = 2
So 1649-95-2 is a valid CAS Registry Number.

1649-95-2Relevant articles and documents

Regioselectivity of the ring opening of propene oxides bearing electron-withdrawing substituents at the methyl group with Olah's reagent

Skupin, Rolf,Haufe, Guenter

, p. 157 - 165 (2007/10/03)

The regiochemistry of the hydrofluorination of terminal epoxides with Olah's reagent (Py·9HF) is dependent on the electron-withdrawing character of the β-substituents. Phenoxy ethers with different substitution patterns of the aromatic ring and several N-heterocycles were examined as β-substituents.

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