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5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione

Also known as: 5-Bromo-1,3-dimethyluracil, 5-Bromo-1,3-dimethyl-1H-pyrimidine-2,4-dione, 1,3-Dimethyl-5-bromouracil, 2,4(1H,3H)-Pyrimidinedione, 5-bromo-1,3-dimethyl-, 5-Bromo-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione, 5-Bromo-1,3-dimethylpyrimidine-2,4-dione, MFCD00191846

5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 7033-39-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7BrN2O2 and a molecular weight of 219.036 g/mol. Key properties include a melting point of 182-185ºC(lit.), a boiling point of 242.1±50.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 100.2±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7033-39-8
Jingsj CID
J-48086-4
Molecular Formula
C6H7BrN2O2
Molecular Weight
219.036 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point182-185ºC(lit.)
Boiling Point242.1±50.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point100.2±30.1 °C
Exact Mass217.969086
PSA44.00000
LogP0.75
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.585
Storage Conditions2-8°C

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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 5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione?

The CAS number of 5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione is 7033-39-8.

What are the molecular formula and molecular weight of 5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione?

5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione has molecular formula C6H7BrN2O2 and molecular weight 219.036 g/mol.

Is 5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione hazardous?

5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

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

Last updated:

How to cite: Jingsj. "5-Bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 7033-39-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48086-4 (accessed 2026-11-09).

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