API Process Intermediates & Related Compounds

4-Aminophthalic Acid

Name: 4-Aminophthalic Acid
Brand: Zemixal
SKU: ZX-039820

Available on request

4-Aminophthalic Acid (CAS 5434-21-9) supplier Zemixal: C8H7NO4, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-039820.

Pack sizes

CAS number5434-21-9

FormulaC₈H₇NO₄

Molar mass181.15 g/mol

Physical formSolid

HS code2933

InChIKeyOXSANYRLJHSQEP-UHFFFAOYSA-N

IUPAC name4-aminophthalic acid

About 4-Aminophthalic Acid

4-Aminophthalic Acid sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Identity at a glance: CAS 5434-21-9, formula C8H7NO4 and molar mass 181.15 g/mol. It is handled as a solid.

Where it is used

API route development
Impurity fate & purge studies
Analytical method development

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Pomalidomide

See every impurity, metabolite and related compound we list for this API.

Pomalidomide standards

Typical uses

API route development
Impurity fate & purge studies
Analytical method development

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 4-Aminophthalic Acid
Product name	4-Aminophthalic Acid
Catalogue number	ZX-039820
CAS number	5434-21-9
IUPAC name	4-aminophthalic acid
Molecular formula	C₈H₇NO₄
Molar mass	181.15 g/mol
Exact mass	181.0375
Physical form	Solid
XLogP3	0.7
H-bond donors / acceptors	3 / 5
Topological polar surface area	101 Å²
HS code	2933
InChIKey	OXSANYRLJHSQEP-UHFFFAOYSA-N
SMILES	C1=CC(=C(C=C1N)C(=O)O)C(=O)O
PubChem CID	72912
Synonyms	1,2-Benzenedicarboxylic acid, 4-amino-, 4-Aminophthalate, 4-aminobenzene-1,2-dicarboxylic acid, 4-Amino-1,2-benzenedicarboxylic acid, 4-Aminophthalic Acid(Contains 3-Aminophthalic Acid), ghl.PD_Mitscher_leg0.1208, 4-amino-2-benzenedicarboxylicacid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

Irritant or harmful

Signal word Warning

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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 4-Aminophthalic Acid
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4-Aminophthalic Acid

Which CAS number identifies 4-Aminophthalic Acid?

4-Aminophthalic Acid is registered under CAS 5434-21-9. You may also see it listed as 1,2-Benzenedicarboxylic acid, 4-amino-, 4-Aminophthalate, 4-aminobenzene-1,2-dicarboxylic acid. Our catalogue number for this item is ZX-039820.

What are the formula and molar mass of 4-Aminophthalic Acid?

For 4-Aminophthalic Acid, its formula is C8H7NO4 and its molar mass is 181.15 g/mol. The systematic (IUPAC) name is 4-aminophthalic acid. InChIKey OXSANYRLJHSQEP-UHFFFAOYSA-N lets you match it in any structure database.

How is 4-Aminophthalic Acid used in pharmaceutical QC?

4-Aminophthalic Acid is a characterised reference material linked to Pomalidomide. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 4-Aminophthalic Acid?

The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 4-Aminophthalic Acid?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship 4-Aminophthalic Acid to my country?

Yes. Because 4-Aminophthalic Acid is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

More Pomalidomide standards

More in API Process Intermediates & Related Compounds

4-Aminopiperidine-2,6-dione hydrochloride

CAS: 1957235-82-3
Formula: C₅H₉ClN₂O₂
MW: 164.59 g/mol

ZX-042371

3,6-Dinitrophthalic acid

CAS: 2300-16-5
Formula: C₈H₄N₂O₈
MW: 256.13 g/mol

ZX-036006

4-((2-Aminoethyl)amino)-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione 2,2,2-trifluoroacetate

CAS: 1957235-67-4
Formula: C₁₇H₁₇F₃N₄O₆
MW: 430.3 g/mol

ZX-044853

1,3-Dioxo-2-(2,6-dioxopiperidin-3-yl)-5-aminoisoindoline

CAS: 191732-76-0
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

ZX-031102

Benzyl 2,6-dioxopiperidin-3-ylcarbamate

CAS: 24666-55-5
Formula: C₁₃H₁₄N₂O₄
MW: 262.26 g/mol

ZX-031101

4-Amino-2'-(2,6-dioxopiperidin-3-yl)-[2,4'-biisoindoline]-1,1',3,3'-tetraone

CAS: 1795373-54-4
Formula: C₂₁H₁₄N₄O₆
MW: 418.4 g/mol

ZX-026465

(S)-Pomalidomide

CAS: 202271-89-4
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

ZX-026464

(R)-Pomalidomide

CAS: 202271-90-7
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

ZX-026463

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list