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4-(4-Pyridinyl)benzaldehyde

Also known as: 4-(4-Formylphenyl)pyridine, 4-(4-Pyridinyl)benzaldehyde, 4-(Pyridin-4-yl)benzaldehyde, 4-pyridin-4-ylbenzaldehyde, Benzaldehyde, 4-(4-pyridinyl)-, MFCD02684110

4-(4-Pyridinyl)benzaldehyde (CAS 99163-12-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9NO and a molecular weight of 183.206 g/mol. Key properties include a melting point of 101-104ºC, a boiling point of 336.7±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 165.4±30.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99163-12-9
Jingsj CID
J-1338395-4
Molecular Formula
C12H9NO
Molecular Weight
183.206 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point101-104ºC
Boiling Point336.7±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point165.4±30.6 °C
Exact Mass183.068420
PSA29.96000
LogP1.90
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.615

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) 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 4-(4-Pyridinyl)benzaldehyde?

The CAS number of 4-(4-Pyridinyl)benzaldehyde is 99163-12-9.

What are the molecular formula and molecular weight of 4-(4-Pyridinyl)benzaldehyde?

4-(4-Pyridinyl)benzaldehyde has molecular formula C12H9NO and molecular weight 183.206 g/mol.

Is 4-(4-Pyridinyl)benzaldehyde hazardous?

4-(4-Pyridinyl)benzaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 4-(4-Pyridinyl)benzaldehyde?

For 4-(4-Pyridinyl)benzaldehyde, Upstream Products: 4-Bromopyridine, 4-Formylphenylboronic acid, 4-Bromobenzaldehyde dimethyl acetal; Downstream Products: 4-(4-Pyridyl)benzoic acid, 4-(4-pyridinyl)benzenemethanol.

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

Last updated:

How to cite: Jingsj. "4-(4-Pyridinyl)benzaldehyde (CAS 99163-12-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1338395-4 (accessed 2026-11-09).

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