4-[(tert-butoxycarbonyl)amino]benzoic acid

Also known as: Boc-4-ABz-OH, BOC-4-ABZ-OH, 4-(Boc-amino)benzoic acid, 4-(tert-butoxycarbonylamino)benzoic acid, N-Boc-4-aminobenzoic acid, N-tert-butoxycarbonyl-4-aminobenzoic acid, 4-[(2-methylpropan-2-yl)oxycarbonylamino]benzoic acid, Benzoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, RARECHEM EM WB 0012, MFCD00037428

4-[(tert-butoxycarbonyl)amino]benzoic acid (CAS 66493-39-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H15NO4 and a molecular weight of 237.252 g/mol. Key properties include a melting point of 200ºC, a boiling point of 336.2±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 157.1±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 66493-39-8
Jingsj CID: J-24523-8
Molecular Formula: C₁₂H₁₅NO₄
Molecular Weight: 237.252 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	200ºC
Boiling Point	336.2±25.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	157.1±23.2 °C
Exact Mass	237.100113
PSA	75.63000
LogP	3.11
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.575

Customs & Trade Information

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-[(tert-butoxycarbonyl)amino]benzoic acid?

The CAS number of 4-[(tert-butoxycarbonyl)amino]benzoic acid is 66493-39-8.

What are the molecular formula and molecular weight of 4-[(tert-butoxycarbonyl)amino]benzoic acid?

4-[(tert-butoxycarbonyl)amino]benzoic acid has molecular formula C12H15NO4 and molecular weight 237.252 g/mol.

What are the upstream and downstream products of 4-[(tert-butoxycarbonyl)amino]benzoic acid?

For 4-[(tert-butoxycarbonyl)amino]benzoic acid, Upstream Products: Di-tert-butyl dicarbonate, 4-aminobenzoic acid, ethyl 4-(tert-butoxycarbonylamino)benzoate; Downstream Products: 4-Amino-N-ethylbenzamide, 4-amino-N-benzylbenzamide, 4-amino-N-phenethylbenzamide.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-[(tert-butoxycarbonyl)amino]benzoic acid (CAS 66493-39-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24523-8 (accessed 2026-11-09).

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