5-Methylcytosine
5-甲基胞嘧啶
Also known as: 4-Amino-2-hydroxy-5-methylpyrimidine, 4-Amino-5-methylpyrimidin-2(1H)-one, 6-amino-5-methyl-1H-pyrimidin-2-one, 2(1H)-Pyrimidinone, 4-amino-5-methyl- (9CI), Cytosine, 5-methyl-
5-Methylcytosine (CAS 554-01-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3O and a molecular weight of 125.129 g/mol. It is also known as 4-Amino-2-hydroxy-5-methylpyrimidine, 4-Amino-5-methylpyrimidin-2(1H)-one and 6-amino-5-methyl-1H-pyrimidin-2-one. Key properties include a melting point of >270ºC (>518ºCF), a boiling point of 417.3ºC at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 206.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 554-01-8
- Jingsj CID
- J-7355-0
- Molecular Formula
- C5H7N3O
- Chinese Name
- 5-甲基胞嘧啶
- Molecular Weight
- 125.129 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >270ºC (>518ºCF) |
|---|---|
| Boiling Point | 417.3ºC at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 206.2ºC |
Frequently Asked Questions
What is the CAS number of 5-Methylcytosine?
The CAS number of 5-Methylcytosine is 554-01-8.
What are the molecular formula and molecular weight of 5-Methylcytosine?
5-Methylcytosine has molecular formula C5H7N3O and molecular weight 125.129 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methylcytosine (CAS 554-01-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7355-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.