2-Amino-5,6-dimethyl-4-hydroxypyrimidine
Also known as: 4-Pyrimidinol, 2-amino-5,6-dimethyl-, 2-Amino-5,6-dimethyl-4-pyrimidinol, 2-Amino-5,6-dimethyl-1H-pyrimidin-4-one, 2-Amino-5,6-dimethyl-3H-pyrimidin-4-one, 2-Amino-5,6-dimethyl-4(3H)-pyrimidinone, 2-Amino-4-hydroxy-5,6-dimethylpyrimidine, 2-Amino-5,6-dimethylpyrimidin-4-ol, 2-azanyl-5,6-dimethyl-1H-pyrimidin-4-one, 2-Amino-5,6-dimethyl-4-pyrimidinol (SALTDATA: FREE)
2-Amino-5,6-dimethyl-4-hydroxypyrimidine (CAS 3977-23-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9N3O and a molecular weight of 139.15500 g/mol. Key properties include a melting point of 333-337 °C(lit.), a boiling point of 341°C, a density of 1.36g/cm3 and a flash point of 110.4ºC. 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.
- 3977-23-9
- Jingsj CID
- J-32212-3
- Molecular Formula
- C6H9N3O
- Molecular Weight
- 139.15500 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 333-337 °C(lit.) |
|---|---|
| Boiling Point | 341°C |
| Density | 1.36g/cm3 |
| Flash Point | 110.4ºC |
| Exact Mass | 139.07500 |
| PSA | 72.03000 |
| LogP | 0.96240 |
| Refractive Index | 1.625 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 2-Amino-5,6-dimethyl-4-hydroxypyrimidine?
The CAS number of 2-Amino-5,6-dimethyl-4-hydroxypyrimidine is 3977-23-9.
What are the molecular formula and molecular weight of 2-Amino-5,6-dimethyl-4-hydroxypyrimidine?
2-Amino-5,6-dimethyl-4-hydroxypyrimidine has molecular formula C6H9N3O and molecular weight 139.15500 g/mol.
Is 2-Amino-5,6-dimethyl-4-hydroxypyrimidine hazardous?
2-Amino-5,6-dimethyl-4-hydroxypyrimidine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Amino-5,6-dimethyl-4-hydroxypyrimidine?
For 2-Amino-5,6-dimethyl-4-hydroxypyrimidine, Upstream Products: Ethyl 2-methylacetoacetate, Guanidine sulfate, Guanidine carbonate; Downstream Products: 2-Amino-4-chloro-5,6-dimethylpyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Amino-5,6-dimethyl-4-hydroxypyrimidine (CAS 3977-23-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32212-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.