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2,2-Dimethyl-1,3-dioxolane-4β,5α-dicarboxylic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91967-11-2

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91967-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91967-11-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,6 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91967-11:
(7*9)+(6*1)+(5*9)+(4*6)+(3*7)+(2*1)+(1*1)=162
162 % 10 = 2
So 91967-11-2 is a valid CAS Registry Number.

91967-11-2Downstream Products

91967-11-2Relevant academic research and scientific papers

Useful methods for the synthesis of isopropylidenes and their chemoselective cleavage

Vanlaldinpuia, Khiangte,Bez, Ghanashyam

supporting information; experimental part, p. 3759 - 3764 (2011/08/06)

A catalytic amount of phosphotungstic acid (PTA) has been found to be a very effective catalyst for isopropylidenation of 1,2-diols and their deprotection at room temperature. The ease of handling, cost and activity of the catalyst, good to excellent yields and chemoselectivity for deprotection are some of the highlights of the reported method.

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