tert-Butyl 4-aminobenzoate, 98%

About tert-Butyl 4-aminobenzoate, 98%

tert-Butyl 4-aminobenzoate is a peptide synthesis reagent carrying the CAS registry number 18144-47-3 at a purity of 98%. Its molecular formula is C11H15NO2 and its molecular weight is 193.24 g/mol. Common synonyms include 4-Aminobenzoic acid tert-butyl ester and tert-Butyl4-aminobenzoate.

It is supplied as white to off-white powder or crystals or chunks. Key physical data: a melting point of 108-110 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span peptide coupling, solid-phase peptide synthesis and bioconjugation. Our customers for this product work in academic and industrial research and diagnostics and biotechnology.

Standard pack sizes are 5 g, 25 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Peptide coupling
Solid-phase peptide synthesis
Bioconjugation

Industries

Specifications & identifiers

Chemical identifiers
Product name	tert-Butyl 4-aminobenzoate, 98%
Catalogue No.	VQ-002432
CAS Number	18144-47-3
IUPAC name	tert-butyl 4-aminobenzoate
Molecular formula	C₁₁H₁₅NO₂
Molecular weight	193.24 g/mol
Exact mass	193.1103
Purity / assay	98%
HSN code	29319090
InChIKey	KYORUZMJUKHKFS-UHFFFAOYSA-N
SMILES	CC(C)(C)OC(=O)C1=CC=C(C=C1)N
PubChem CID	233272

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder or crystals or chunks
Melting point	108-110 °C
LogP (XLogP3)	2.1
H-bond donors / acceptors	1 / 3
TPSA	52.3 Å²
Synonyms	4-Aminobenzoic acid tert-butyl ester, Benzoic acid, 4-amino-, 1,1-dimethylethyl ester, tert-Butyl4-aminobenzoate, T-Butyl 4-aminobenzoate, 1,1-dimethylethyl 4-aminobenzoate, 4-Amino-benzoic acid tert-butyl ester, 4-(tert-Butoxycarbonyl)aniline, 4-tert.b, t-butyl-4-aminobenzoate, 4-tert.butoxycarbonyl-aniline, tert.-butyl 4-amino-benzoate, 4-tert.butyloxycarbonyl-aniline

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of tert-Butyl 4-aminobenzoate, 98%?

The CAS Registry Number of tert-Butyl 4-aminobenzoate, 98% is 18144-47-3. It is also known as 4-Aminobenzoic acid tert-butyl ester, Benzoic acid, 4-amino-, 1,1-dimethylethyl ester, tert-Butyl4-aminobenzoate.

What is the molecular formula and molecular weight of tert-Butyl 4-aminobenzoate, 98%?

tert-Butyl 4-aminobenzoate, 98% has the molecular formula C11H15NO2 and a molecular weight of 193.24 g/mol. Its IUPAC name is tert-butyl 4-aminobenzoate.

Which grade and pack sizes of tert-Butyl 4-aminobenzoate, 98% can I order?

We supply tert-Butyl 4-aminobenzoate, 98% in (98%) grade, in 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with tert-Butyl 4-aminobenzoate, 98%?

Yes. Every lot of tert-Butyl 4-aminobenzoate, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can tert-Butyl 4-aminobenzoate, 98% be shipped internationally?

Yes. tert-Butyl 4-aminobenzoate, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.