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2,4:3,5-di-O-methylene-D-mannitol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

73209-88-8

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73209-88-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73209-88-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,0 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73209-88:
(7*7)+(6*3)+(5*2)+(4*0)+(3*9)+(2*8)+(1*8)=128
128 % 10 = 8
So 73209-88-8 is a valid CAS Registry Number.

73209-88-8Relevant academic research and scientific papers

Polyamides and polyesters containing 2,4:3,5-di-O-methylene-L-idaroyl residues

Tinnemans, A. H. A.,Budding, H. A.,Stein, F.,Venekamp, J. C.

, p. 181 - 186 (2007/10/02)

Electrochemical oxidation of 2,4:3,5-di-O-methylene-D-gluconic acid in strong alkaline medium afforded a mixture of 2,4:3,5-di-O-methylene-D-glucaric acid 4 and 2,4:3,5-di-O-methylene-L-idaric acid 1 in a 1/8 ratio with a current efficiency of 53percent.Force-field calculations using Allinger's molecular mechanics program MM2p85 on 1 and 4 indicate that these cis-fused tetrahydro-dioxino-1,3-dioxin ring systems possess an O-inside conformation with a steric energy of 110.3 and 123.5 kJ*mol-1, respectively.Their conformation was confirmed by 400-MHz 1H- and 100-MHz 13C NMR measurements.A series of polycondensates were prepared by homogeneous solution polymerisation of 1 with an aromatic diol or aromatic diamine, which were analyzed by DSC and TGA.

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