6-Methyluracil
Also known as: 2,4-Dihydroxy-6-methylpyrimidine, 6-Methyl-2,4(1H,3H)-pyrimidinedione, 6-Methylpyrimidine-2,4(1H,3H)-dione, 2,4(1H,3H)-Pyrimidinedione, 6-methyl-, 6-methyl-1H-pyrimidine-2,4-dione, 6-methylpyrimidine-2,4-diol, Pseudothymine, Methacil, Metacil
6-Methyluracil (CAS 626-48-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.113 g/mol. Key properties include a melting point of 318 °C (dec.)(lit.), a density of 1.2±0.1 g/cm3 and a flash point of 208ºC. It is classified under GHS with signal word Warning and hazard statements H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 626-48-2
- Jingsj CID
- J-3236-0
- Molecular Formula
- C5H6N2O2
- Molecular Weight
- 126.113 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 318 °C (dec.)(lit.) |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 208ºC |
| Exact Mass | 126.042931 |
| PSA | 65.72000 |
| LogP | -0.12 |
| Refractive Index | 1.490 |
| Additional Property | 7 g/L (22 ºC) |
GHS Safety & Compliance
- H361 — Suspected of damaging fertility or the unborn child
Activity & Biological Data
| Additional Information | [1]. Cromby CH, et, al. 6-Methyluracil excretion in 2-methylacetoacetyl-CoA thiolase deficiency and in two children with an unexplained recurrent ketoacidaemia. J Inherit Metab Dis. 1994;17(1):81-4. [2]. Taran IP, et, al. [The antiradiation action of 6-methyluracil]. Radiobiologiia. Mar-Apr 1993;33(2):285-90. |
|---|
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-Methyluracil?
The CAS number of 6-Methyluracil is 626-48-2.
What are the molecular formula and molecular weight of 6-Methyluracil?
6-Methyluracil has molecular formula C5H6N2O2 and molecular weight 126.113 g/mol.
Is 6-Methyluracil hazardous?
6-Methyluracil has GHS signal word Warning and hazard statements H361 — Suspected of damaging fertility or the unborn child.
What are the upstream and downstream products of 6-Methyluracil?
For 6-Methyluracil, Upstream Products: Methylthiouracil, N-Methylallylamine, L-Valine methyl ester; Downstream Products: 2,4-Dichloro-6-methylpyrimidine, 5-bromo-3,6-dimethyluracil, 6-Formyluracil monohydrate.
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-Methyluracil (CAS 626-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3236-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.