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2-(methylthio)pyrimidin-4-amine

Also known as: 4-pyrimidinamine, 2-(methylthio)-, 4-amino-2-methylthiopyrimidine, 2-(methylsulfanyl)pyrimidin-4-amine, 2-methylsulfanylpyrimidin-4-amine, 2-methylthio-4-aminopyrimidine, [2-(methylthio)pyrimidin-4-yl]amine, NSC 88955

2-(methylthio)pyrimidin-4-amine (CAS 2183-66-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7N3S and a molecular weight of 141.194 g/mol. Key properties include a boiling point of 312.9±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 143.0±20.4 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2183-66-6
Jingsj CID
J-5157-0
Molecular Formula
C5H7N3S
Molecular Weight
141.194 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point312.9±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point143.0±20.4 °C
Exact Mass141.036072
PSA77.10000
LogP1.09
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.623

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H318 — Causes serious eye damage
  • H335 — May cause respiratory irritation

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-(methylthio)pyrimidin-4-amine?

The CAS number of 2-(methylthio)pyrimidin-4-amine is 2183-66-6.

What are the molecular formula and molecular weight of 2-(methylthio)pyrimidin-4-amine?

2-(methylthio)pyrimidin-4-amine has molecular formula C5H7N3S and molecular weight 141.194 g/mol.

Is 2-(methylthio)pyrimidin-4-amine hazardous?

2-(methylthio)pyrimidin-4-amine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 2-(methylthio)pyrimidin-4-amine?

For 2-(methylthio)pyrimidin-4-amine, Upstream Products: 4-Chloro-2-(methylthio)pyrimidine, 4-Amino-2-mercaptopyrimidine, iodomethane.

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-(methylthio)pyrimidin-4-amine (CAS 2183-66-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5157-0 (accessed 2026-11-09).

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