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Diphenylphosphoryl azide

Also known as: DPPA, Diphenyl azidophosphate, diphenyl azidophosphate, Diphenyl phosphorazidate, Diphenylphosphoric azide, Diphenylphosphonic azide, Phosphoric acid diphenyl ester azide, Phosphorazidic acid diphenyl ester, diphenyl phosphoroazidate, diphenyl phosphoryl azide

Diphenylphosphoryl azide (CAS 26386-88-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H10N3O3P and a molecular weight of 275.200 g/mol. Key properties include a boiling point of 157 °C0.17 mm Hg(lit.), a density of 1.277 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
26386-88-9
Jingsj CID
J-1106793-9
Molecular Formula
C12H10N3O3P
Molecular Weight
275.200 g/mol
Category
Organic Acids
Last updated
11/3/2026

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Physicochemical Properties

Boiling Point157 °C0.17 mm Hg(lit.)
Density1.277 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass275.045990
PSA95.09000
LogP2.13
Refractive Indexn20/D 1.551(lit.)
Additional Propertyinsoluble

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diphenylphosphoryl azide?

The CAS number of Diphenylphosphoryl azide is 26386-88-9.

What are the molecular formula and molecular weight of Diphenylphosphoryl azide?

Diphenylphosphoryl azide has molecular formula C12H10N3O3P and molecular weight 275.200 g/mol.

Is Diphenylphosphoryl azide hazardous?

Diphenylphosphoryl azide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of Diphenylphosphoryl azide?

For Diphenylphosphoryl azide, Upstream Products: Diphenyl chlorophosphate, Diphenyl phosphite, Phenol; Downstream Products: Bis(4-nitrophenyl) phosphorazidate, DL-2-Phenylpropionic acid, (Trimethylsilyl)diazomethane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diphenylphosphoryl azide (CAS 26386-88-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106793-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.