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128348-58-3

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128348-58-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128348-58-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,4 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128348-58:
(8*1)+(7*2)+(6*8)+(5*3)+(4*4)+(3*8)+(2*5)+(1*8)=143
143 % 10 = 3
So 128348-58-3 is a valid CAS Registry Number.

128348-58-3Relevant articles and documents

1,2-H shift in copper-chlorocarbenoid intermediate during CuCl/bpy-promoted stereoselective dechlorination of 2,2,2-trichloroethyl alkyl ethers to (Z)-1-alkoxy-2-chloroethenes

Ram, Ram N.,Manoj

supporting information; experimental part, p. 2243 - 2246 (2009/05/11)

(Chemical Equation Presented) Reaction of 2,2,2-trichloroethyl alkyl ethers with 2 molar equiv of CuCl/bpy in refluxing DCE yielded (Z)-1-alkoxy-2- chloroethenes stereoselectively as the major product via 1,2-H shift in copper-chlorocarbenoid intermediate. 2,2,2-Trichloroethyl carboxylates undergo a radical 1,2-acyloxy shift under similar conditions.

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