1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one

1-苯基-1,3,8-三氮杂螺[4.5]癸烷-4-酮

Also known as: 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one, 4-Oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane, 1,3,8-Triazaspiro[4.5]decan-4-one, 1-phenyl-, 1-Phenyl-4-oxo-1,3,8-triazaspiro[4.5]decane, MFCD00005977, EINECS 213-819-5

1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one (CAS 1021-25-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H17N3O and a molecular weight of 231.29400 g/mol. It is also known as 4-Oxo-1-phenyl-1,3,8-triazaspiro[4.5]decane, 1,3,8-Triazaspiro[4.5]decan-4-one, 1-phenyl- and 1-Phenyl-4-oxo-1,3,8-triazaspiro[4.5]decane. Key properties include a melting point of 188-191 °C, a boiling point of 479.7ºC at 760mmHg, a density of 1.23g/cm3 and a flash point of 243.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1021-25-6
Jingsj CID: J-48925-8
Molecular Formula: C₁₃H₁₇N₃O
Chinese Name: 1-苯基-1,3,8-三氮杂螺[4.5]癸烷-4-酮
Molecular Weight: 231.29400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	188-191 °C
Boiling Point	479.7ºC at 760mmHg
Density	1.23g/cm3
Flash Point	243.9ºC
Exact Mass	231.13700
PSA	44.37000
LogP	1.42510
Vapor Pressure	2.31E-09mmHg at 25°C

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one?

The CAS number of 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one is 1021-25-6.

What are the molecular formula and molecular weight of 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one?

1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one has molecular formula C13H17N3O and molecular weight 231.29400 g/mol.

What are the upstream and downstream products of 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one?

For 1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one, Downstream Products: 8-Benzyl-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one, Spiperone, Fluspirilene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one (CAS 1021-25-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48925-8 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.