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Altretamine

Also known as: Hexamethylmelamine, 2,4,6-Tris(dimethylamino)-1,3,5-triazine, 1,3,5-Triazine-2,4,6-triamine, N,N,N',N',N'',N''-hexamethyl-, N,N,N',N',N'',N''-Hexamethyl-1,3,5-triazine-2,4,6-triamine, N2,N2,N4,N4,N6,N6-hexamethyl-1,3,5-triazine-2,4,6-triamine, Hemel, Hexalen, Hexastat, HMM, ENT 50852, RB-1515, WR-95704, NC 195

Altretamine (CAS 645-05-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C9H18N6 and a molecular weight of 210.279 g/mol. Key properties include a melting point of 171-175 °C(lit.), a boiling point of 339.4±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 159.1±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
645-05-6
Jingsj CID
J-5461-6
Molecular Formula
C9H18N6
Molecular Weight
210.279 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point171-175 °C(lit.)
Boiling Point339.4±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point159.1±23.2 °C
Exact Mass210.159302
PSA48.39000
LogP2.42
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.610
Additional PropertyInsoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Kelner MJ, et al. Synergy of irofulven in combination with other DNA damaging agents: synergistic interaction with altretamine, alkylating, and platinum-derived agents in the MV522 lung tumor model. Cancer Chemother Pharmacol. 2008 Dec;63(1):19-26.

Customs & Trade Information

HS Code2933699090
Summary2933699090 other compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Altretamine?

The CAS number of Altretamine is 645-05-6.

What are the molecular formula and molecular weight of Altretamine?

Altretamine has molecular formula C9H18N6 and molecular weight 210.279 g/mol.

Is Altretamine hazardous?

Altretamine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Altretamine?

For Altretamine, Upstream Products: Dimethylcyanamide, Cyanuric chloride, Dimethylamine; Downstream Products: Dimethylamine, Cyanuric acid.

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

Last updated:

How to cite: Jingsj. "Altretamine (CAS 645-05-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5461-6 (accessed 2026-11-06).

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