6-Amino-1,3-dimethyluracil
Also known as: 6-Amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione, 1,3-Dimethyl-6-aminouracil, 1,3-Dimethyl-4-aminouracil, 6-Amino-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione, 6-amino-1,3-dimethylpyrimidine-2,4-dione, 4-Amino-1,3-dimethyluracil
6-Amino-1,3-dimethyluracil (CAS 6642-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9N3O2 and a molecular weight of 155.155 g/mol. Key properties include a melting point of 295 °C (dec.)(lit.), a boiling point of 243.1±43.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 100.8±28.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6642-31-5
- Jingsj CID
- J-1109186-4
- Molecular Formula
- C6H9N3O2
- Molecular Weight
- 155.155 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 295 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 243.1±43.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 100.8±28.2 °C |
| Exact Mass | 155.069473 |
| PSA | 70.02000 |
| LogP | -0.27 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.551 |
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. 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 6-Amino-1,3-dimethyluracil?
The CAS number of 6-Amino-1,3-dimethyluracil is 6642-31-5.
What are the molecular formula and molecular weight of 6-Amino-1,3-dimethyluracil?
6-Amino-1,3-dimethyluracil has molecular formula C6H9N3O2 and molecular weight 155.155 g/mol.
What are the upstream and downstream products of 6-Amino-1,3-dimethyluracil?
For 6-Amino-1,3-dimethyluracil, Upstream Products: 1,3-Dimethylurea, Cyanoacetic acid, 6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde; Downstream Products: N-[1,3-Dimethyl-6-(methylamino)-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl]acetamide, 6-[N-(2-Hydroxyethyl)amino]-1,3-dimethyl-2,4(1H,3H)-dione, 5,6-Diamino-1,3-dimethyluracil.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "6-Amino-1,3-dimethyluracil (CAS 6642-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1109186-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.