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4-(Butylamino)benzoic acid

Also known as: 4-n-Butylaminobenzoic acid, NSC 44300, para-Butylaminobenzoic acid, Benzoic acid, 4-(butylamino)-, Tetracaine EP Impurity B, Tetracaine impurity B, MFCD00002536, MLS000776796

4-(Butylamino)benzoic acid (CAS 4740-24-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H15NO2 and a molecular weight of 193.24200 g/mol. Key properties include a melting point of 149-151ºC(lit.), a boiling point of 353.5ºC at 760 mmHg, a density of 1.13g/cm3 and a flash point of 167.6ºC. 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.
4740-24-3
Jingsj CID
J-25908-5
Molecular Formula
C11H15NO2
Molecular Weight
193.24200 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point149-151ºC(lit.)
Boiling Point353.5ºC at 760 mmHg
Density1.13g/cm3
Flash Point167.6ºC
Exact Mass193.11000
PSA49.33000
LogP2.66980
Refractive Index1.577

GHS Safety & Compliance

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

Frequently Asked Questions

What is the CAS number of 4-(Butylamino)benzoic acid?

The CAS number of 4-(Butylamino)benzoic acid is 4740-24-3.

What are the molecular formula and molecular weight of 4-(Butylamino)benzoic acid?

4-(Butylamino)benzoic acid has molecular formula C11H15NO2 and molecular weight 193.24200 g/mol.

Is 4-(Butylamino)benzoic acid hazardous?

4-(Butylamino)benzoic acid 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-(Butylamino)benzoic acid?

For 4-(Butylamino)benzoic acid, Upstream Products: 4-aminobenzoic acid, Butyraldehyde, 4-Nitrobenzoic acid; Downstream Products: Ethyl 4-(butylamino)benzoate, Tetracaine, N-Butylaniline.

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-(Butylamino)benzoic acid (CAS 4740-24-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25908-5 (accessed 2026-11-09).

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