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Home/Compounds/API/Phosphoric acid triethylene imide
C6H12N3OP
173.15 g/mol
API

Triethylenephosphoramide

CAS545-55-1EC208-892-5
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material

Triethylenephosphoramide is a chemical compound used as an active pharmaceutical ingredient. It is structurally related to thiotepa, an alkylating agent employed in cancer chemotherapy.

pharmaceutical manufacturingactive pharmaceutical ingredient for oncology formulationsresearch compound for alkylating agent studies

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Restricted or banned substances

Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.

Relevant lists:EU REACH Restriction List

CAS 545-55-1

Related Compounds

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CAS54504-70-0

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CAS5451-09-2

pharmaceutical raw material

ReferenceSame Category

Nicardipine hydrochloride

CAS54527-84-3

pharmaceutical raw material

ReferenceSame Category

Propiverine hydrochloride

CAS54556-98-8

pharmaceutical raw material

Referencesame scaffold

Metepa

CAS57-39-6

phosphoramide alkylating agent

Safety Reference

Regulatory Compliance2
  • EU REACH Restriction ListEURegulation
    RestrictedSource
  • CN Catalogue of Hazardous ChemicalsCNRegulation
    Listed· listed since 2015-05-01Source

Customs Tariff Classification

The international HS code for Triethylenephosphoramide (CAS 545-55-1) is 2933.99, 3824.99.

HS code (international, 6-digit)

2933.99, 3824.99

EU CN code (8-digit)

2933 99 80, 3824 99 93

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

1-[bis(aziridin-1-yl)phosphoryl]aziridine

InChIKey

FYAMXEPQQLNQDM-UHFFFAOYSA-N

SMILES

C1CN1P(=O)(N2CC2)N3CC3

Synonyms (50)
  • APO
  • TAPO
  • TEF
  • TEPA
  • TPEA
  • Aphoxide
  • ENT 24,915
  • Imperon fixer T
  • N,N -triethylenephosphoramide
  • TEPA (VAN)
  • Triaethylenphosphorsaeureamid
  • Triaziridinophosphine oxide
  • Triaziridinylphosphine oxide
  • Triethylene phophoramide
  • Triethylenephosphoramide
  • Triethylenephosphorotriamide
  • Triethylenepyrophosphoramide
  • Triethylenfosforamid
  • Triethylenfosforamid [Czech]
  • Tris-(1-aziridinyl)fosfinoxid