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Carbonic diisocyanate, also known as methylene diphenyl diisocyanate (MDI) or toluene diisocyanate (TDI), is a class of highly reactive, colorless, and toxic organic compounds with the general formula (NCO)2. These chemicals are widely used in the production of polyurethane foams, elastomers, and coatings due to their ability to react with various substrates, such as alcohols and amines, to form stable urethane linkages. Carbonic diisocyanates are derived from the reaction of phosgene with amines, and they are commonly used in the manufacturing of flexible and rigid foams, adhesives, sealants, and elastomers. However, due to their potential health risks, including respiratory and skin irritation, strict safety measures and regulations are in place for their handling and use.

6498-10-8

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6498-10-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6498-10-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,9 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6498-10:
(6*6)+(5*4)+(4*9)+(3*8)+(2*1)+(1*0)=118
118 % 10 = 8
So 6498-10-8 is a valid CAS Registry Number.

6498-10-8Relevant academic research and scientific papers

Carbonyl Diisocyanate: A New Preparation and Some Reactions

Akteries, Bernhard,Jochims, Johannes C.

, p. 83 - 95 (2007/10/02)

A preparation of carbonyl diisocyanate (2) from tri-n-butyltin isocyanate (4) and phosgene is reported.Correspondingly, the acyl isocyanates 6 were obtained from 4 with acyl chlorides.On standing, carbonyl diisocyanate trimerizes reversibly to the triazine 9, which could also be prepared by independent syntheses from the triazines 3 or 12.Reported are reactions of carbonyl diisocyanate with water, hydrogen sulfide, alcohols, phenol, phenol + carbodiimides, thiols, amines, primary ammonium salts, and N-unsubstituted imines leading to compounds 14-24.

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