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Tetramethylurea

Also known as: 1,1,3,3-Tetramethylurea, N,N,N',N'-Tetramethylurea, TMU, Tetramethyl-urea, Tetramethylharnstoff, UNII:2O1EJ64031, Urea, N,N,N',N'-tetramethyl-, 1,1,3,3-tetramethyl urea, ((CH3)2N)2CO, Temur

Tetramethylurea (CAS 632-22-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H12N2O and a molecular weight of 116.162 g/mol. Key properties include a melting point of −1 °C(lit.), a boiling point of 175.2±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 53.9±11.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
632-22-4
Jingsj CID
J-8782-1
Molecular Formula
C5H12N2O
Molecular Weight
116.162 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−1 °C(lit.)
Boiling Point175.2±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point53.9±11.1 °C
Exact Mass116.094963
PSA23.55000
LogP0.19
Vapor Pressure1.2±0.3 mmHg at 25°C
Refractive Index1.445
Additional Propertymiscible

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed

Customs & Trade Information

HS Code2924199090
Summary2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Tetramethylurea?

The CAS number of Tetramethylurea is 632-22-4.

What are the molecular formula and molecular weight of Tetramethylurea?

Tetramethylurea has molecular formula C5H12N2O and molecular weight 116.162 g/mol.

Is Tetramethylurea hazardous?

Tetramethylurea has GHS signal word Danger and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Tetramethylurea?

For Tetramethylurea, Upstream Products: Tetramethylthiourea, 5-Amino-1-indanone, N-(tert-Butoxycarbonyl)-L-methionine; Downstream Products: (Dimethylaminomethylene)dimethylammonium chloride, 1,1,3,3-Tetramethyl-2-(2-oxopyridin-1(2H)-yl)isouronium hexafluorophosphate, N-Ethyl-N,N',N'-trimethylurea.

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

Last updated:

How to cite: Jingsj. "Tetramethylurea (CAS 632-22-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8782-1 (accessed 2026-11-09).

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