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Di-p-tolylphosphinic azide is an organophosphorus compound with the chemical formula (C6H5)2P(O)N3. It is a white crystalline solid that is sensitive to heat and shock, making it potentially hazardous. di-p-tolylphosphinic azide is primarily used in the synthesis of various phosphorus-containing organic compounds and as a reagent in chemical reactions. Due to its reactivity, it is essential to handle di-p-tolylphosphinic azide with caution and proper safety measures.

4129-18-4

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4129-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4129-18-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,2 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4129-18:
(6*4)+(5*1)+(4*2)+(3*9)+(2*1)+(1*8)=74
74 % 10 = 4
So 4129-18-4 is a valid CAS Registry Number.

4129-18-4Relevant academic research and scientific papers

DIARYLPHOSPHINIC AZIDES. PHOTOCHEMICAL REACTIONS INCLUDING REARRANGEMENT IN METHANOL

Harger, Martin J.P.,Westlake, Sally

, p. 1511 - 1516 (2007/10/02)

On photolysis in methanol the diarylphosphinic azides Ar2P(O)N3 (Ar=phenyl, p-tolyl, p-anisyl, p-chlorophenyl) rearrange with loss of nitrogen to form (monomeric) metaphosphonimidates which are trapped by the solvent to give methyl NP-diarylphosphonamidates (7) (41-53percent).Diarylphosphinic amides (18-42percent) are also usually formed, presumably from (triplet) nitrenes.The limited evidence available suggests that the rearrangements take place directly from the photo-excited azides rather than via (singlet) nitrene intermediates.One of the products of rearrangement, methyl NP-di(p-chlorophenyl)phosphonamidate, suffers extensive photochemical dechlorination giving methyl N-phenyl-P-p-chlorophenylphosphonamidate.

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