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13412-55-0

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13412-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13412-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,1 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13412-55:
(7*1)+(6*3)+(5*4)+(4*1)+(3*2)+(2*5)+(1*5)=70
70 % 10 = 0
So 13412-55-0 is a valid CAS Registry Number.

13412-55-0Relevant articles and documents

A Kinetic Study of the Rearrangement of Triarylacetonitrile Oxides

Gibbs, Leslie W.,Wedegaertner, Donald K.

, p. 7320 - 7322 (1991)

The thermal rearrangement of triphenylacetonitrile oxide (1a) to triphenylmethyl isocyanate (2) is a first-order process.Rate constants at five temperatures between 116 and 190 deg C were determined giving ΔH(excit.) = 9.3 +/- 1.1 kcal/mol and ΔS(excit.) = -58.2 +/- 2.4 cal/mol*K.The rearrangement of substituted triarylacetonitrile oxides (1b-d) occur only slightly faster than that of 1a.These results are interpreted in terms of a concerted single-step rearrangement in which the highly ordered transition state (6c) has a degree of radical character.

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