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2,2'-Bipyrimidine

Also known as: 2,2'-Dipyrimidine, 2,2'-Dipyrimidyl, bipyrimidyl, 2,2'-Bipyrimidinyl, 2-(pyrimidin-2-yl)pyrimidine

2,2'-Bipyrimidine (CAS 34671-83-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6N4 and a molecular weight of 158.160 g/mol. Key properties include a melting point of 112-116 °C(lit.), a boiling point of 395.4±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 197.0±16.1 °C. 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.
34671-83-5
Jingsj CID
J-19292-7
Molecular Formula
C8H6N4
Molecular Weight
158.160 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point112-116 °C(lit.)
Boiling Point395.4±25.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point197.0±16.1 °C
Exact Mass158.059250
PSA51.56000
LogP0.00
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.592

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • 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 2,2'-Bipyrimidine?

The CAS number of 2,2'-Bipyrimidine is 34671-83-5.

What are the molecular formula and molecular weight of 2,2'-Bipyrimidine?

2,2'-Bipyrimidine has molecular formula C8H6N4 and molecular weight 158.160 g/mol.

Is 2,2'-Bipyrimidine hazardous?

2,2'-Bipyrimidine 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 2,2'-Bipyrimidine?

For 2,2'-Bipyrimidine, Upstream Products: 2-Chloropyrimidine, 2-Iodopyrimidine, 2-Bromopyrimidine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,2'-Bipyrimidine (CAS 34671-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19292-7 (accessed 2026-11-09).

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