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309263-85-2

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309263-85-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309263-85-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,2,6 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 309263-85:
(8*3)+(7*0)+(6*9)+(5*2)+(4*6)+(3*3)+(2*8)+(1*5)=142
142 % 10 = 2
So 309263-85-2 is a valid CAS Registry Number.

309263-85-2Downstream Products

309263-85-2Relevant articles and documents

New polymers with alkylidenesuccinimide structures based on bismaleimides and biscitraconimides

Gaina, Viorica,Gaina, Constantin

experimental part, p. 647 - 652 (2011/10/18)

New polymers containing alkylidenesuccinimide structures prepared from phosphorous ylides of bismaleimides or biscitraconimides and aromatic dialdehydes by the Witting reaction, are reported for the first time in the literature. Phosphorous ylides of bismaleimides or biscitraconimides were synthesized in situ by the reaction of bismaleimide or biscitraconimide or AB monomers containing both maleimide and aldehyde or citraconimide and aldehyde groups with triphenylphosphine in metha-cresol or acetic acid. The structures of monomers and polymers were confirmed by FTIR, 1H-NMR and UV-visible spectroscopy and elemental analysis. The thermal behaviour of polymers was studied by thermogravimetric analysis and differential calorimetric measurements.

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