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2-Amino-4-methoxypyrimidine

Also known as: 4-Methoxypyrimidin-2-amine, 2-Pyrimidinamine, 4-methoxy-, 4-Methoxy-2-aminopyrimidine

2-Amino-4-methoxypyrimidine (CAS 155-90-8) 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 125.12900 g/mol. Key properties include a boiling point of 313.1ºC at 760 mmHg, a density of 1.224g/cm3 and a flash point of 143.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
155-90-8
Jingsj CID
J-37205-4
Molecular Formula
C5H7N3O
Molecular Weight
125.12900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point313.1ºC at 760 mmHg
Density1.224g/cm3
Flash Point143.2ºC
Exact Mass125.05900
PSA61.03000
LogP0.64860
Vapor Pressure0.000506mmHg at 25°C
Refractive Index1.566

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 2-Amino-4-methoxypyrimidine?

The CAS number of 2-Amino-4-methoxypyrimidine is 155-90-8.

What are the molecular formula and molecular weight of 2-Amino-4-methoxypyrimidine?

2-Amino-4-methoxypyrimidine has molecular formula C5H7N3O and molecular weight 125.12900 g/mol.

What are the upstream and downstream products of 2-Amino-4-methoxypyrimidine?

For 2-Amino-4-methoxypyrimidine, Upstream Products: 2-Amino-4-chloro-6-methoxypyrimidine, 5-Bromo-4-methoxypyrimidin-2-amine, Bis(pinacolato)diboron; Downstream Products: 2-Amino-5-iodo-4-methoxypyrimidine, Isocytosine, 5-Bromo-4-methoxypyrimidin-2-amine.

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-4-methoxypyrimidine (CAS 155-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37205-4 (accessed 2026-11-09).

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