C6H12N3PS
189.22 g/mol
APIDanger
Thiotepa
CAS52-24-4EC200-135-7
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
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:California Proposition 65
CAS 52-24-4
Related Compounds
ApplicationSame Use
Elmustine
CAS60784-46-5
pharmaceutical raw material
ReferenceSame Category
Codeine phosphate
CAS52-28-8
pharmaceutical raw material
ReferenceSame Category
Aldosterone
CAS52-39-1
pharmaceutical raw material
ReferenceSame Category
Allobarbital
CAS52-43-7
pharmaceutical raw material
ReferenceSame Category
Trihexyphenidyl hydrochloride
CAS52-49-3
pharmaceutical raw material
Safety Reference
Danger
H300Fatal if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H340May cause genetic defects
H350May cause cancer
H360May damage fertility or the unborn child
H371May cause damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Thiotepa (CAS 52-24-4) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
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
tris(aziridin-1-yl)-sulfanylidene-lambda5-phosphane
InChIKey
FOCVUCIESVLUNU-UHFFFAOYSA-N
SMILES
C1CN1P(=S)(N2CC2)N3CC3
Synonyms (73)
- TESPA
- TSPA
- Thiotepa (JAN/USP/INN)
- Thiotepa, United States Pharmacopeia (USP)
- Thiotepum [INN-Latin]
- Tiotepa [INN-Spanish]
- AI3 24916
- Girostan
- Ledertepa
- Oncotepa
- Oncothio-tepa
- Oncotiotepa
- Rethio (TN)
- Stepa
- THIOTEPA [MART.]
- TIO TEF
- Tepadina (TN)
- Tepylute
- Tespamin
- Tespamine
- Thio-TEPA (Standard)
- Thio-TEPA, 98%, solid
- Thio-Tep
- Thio-tepa S
- Thiofosfamide
- Thiofozil
- Thiophosphamide
- Thiophosphamidum
- Thioplex
- Thioplex (TN)
- Thioplex (TN) (Immunex)
- Thiotef
- Thiotepa (Thioplex)
- Thiotepum
- Thiotriethylenephosphoramide
- Tifosyl
- Tiofosfamid
- Tiofosyl
- Tiofozil
- Tiotepa
- Triethylenethiophosphoramide
- tepadina
- thiotepa