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4-Pyridineacetic acid hydrochloride

Also known as: 4-Pyridylacetic acid hydrochloride, 4-(Carboxymethyl)pyridinium chloride, 2-(Pyridin-4-yl)acetic acid hydrochloride, Pyridine-4-acetic acid hydrochloride, 4-Pyridineacetic acid, hydrochloride (1:1), 4-Pyridinylacetic acid hydrochloride, pyridin-4-ylacetic acid hydrochloride

4-Pyridineacetic acid hydrochloride (CAS 6622-91-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8ClNO2 and a molecular weight of 173.597 g/mol. Key properties include a melting point of 141 °C (dec.)(lit.), a boiling point of 303.8ºCat 760 mmHg and a flash point of 137.5ºC. 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.
6622-91-9
Jingsj CID
J-1033013-9
Molecular Formula
C7H8ClNO2
Molecular Weight
173.597 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point141 °C (dec.)(lit.)
Boiling Point303.8ºCat 760 mmHg
Flash Point137.5ºC
Exact Mass173.024353
PSA50.19000
LogP1.51070

GHS Safety & Compliance

IrritantSignal word: Warning
  • 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-Pyridineacetic acid hydrochloride?

The CAS number of 4-Pyridineacetic acid hydrochloride is 6622-91-9.

What are the molecular formula and molecular weight of 4-Pyridineacetic acid hydrochloride?

4-Pyridineacetic acid hydrochloride has molecular formula C7H8ClNO2 and molecular weight 173.597 g/mol.

Is 4-Pyridineacetic acid hydrochloride hazardous?

4-Pyridineacetic acid hydrochloride 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 4-Pyridineacetic acid hydrochloride?

For 4-Pyridineacetic acid hydrochloride, Downstream Products: Ethyl 4-pyridylacetate, 4-Piperidineacetic Acid, 1-Acetyl-4-piperidineacetic acid.

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-Pyridineacetic acid hydrochloride (CAS 6622-91-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033013-9 (accessed 2026-11-09).

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