Molekula
5-Aminoisophthalic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
5-Aminoisophthalic acid is a white to off-white crystalline powder used in the synthesis of polymers, pharmaceuticals, and specialty chemicals. It serves as a key intermediate in the production of high-performance materials and bioactive compounds. Available with a CAS number of 99-31-0, molecular formula C8H7NO4, and molecular weight 181.15 g/mol, it is stable at ambient storage conditions. This product carries a warning signal word due to potential health hazards. Molekula supplies 5-Aminoisophthalic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £29.50 per pack ex VAT · £35.40 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Almost white or pale pink/beige crystalline powder |
| Ash | ≤1.0% |
| Loss on Drying | ≤2.0% |
| Assay | ≥94.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 25027293 |
| CAS Number | 99-31-0 |
| IUPAC Name | 5-aminobenzene-1,3-dicarboxylic acid |
| EC Number | 202-748-5 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 |
| Exact Mass | 181.0375 |
| SMILES | C1=C(C=C(C=C1C(=O)O)N)C(=O)O |
| InChIKey | KBZFDRWPMZESDI-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H7NO4/c9-6-2-4(7(10)11)1-5(3-6)8(12)13/h1-3H,9H2,(H,10,11)(H,12,13) |
| PubChem CID | 66833 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29221909 |
| Tariff Code | 2922498590 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1,3-Benzenedicarboxylic acid, 5-amino-
- 3,5-Dicarboxyaniline
- 5-AMINO-1,3-BENZENEDICARBOXYLIC ACID
- 5-Amino-1,3-isophthalic acid
- 5-Aminobenzene-1,3-dicarboxylic acid
- 5-aminoisophtalic acid
- doi:10.14272/KBZFDRWPMZESDI-UHFFFAOYSA-N.1
- Isophthalic acid, 5-amino-
- Oprea1_005424
Frequently asked questions
What is 5-Aminoisophthalic acid used for?
It is primarily used as a building block in the synthesis of polyamides and other specialty polymers, particularly in high-performance materials.
What is the chemical formula and molecular weight of 5-Aminoisophthalic acid?
The formula is C8H7NO4 with a molecular weight of 181.15 g/mol.
How should 5-Aminoisophthalic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 5-Aminoisophthalic acid?
Available in technical grade; custom purity levels may be requested upon inquiry.
Can Molekula supply 5-Aminoisophthalic acid in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of 5-Aminoisophthalic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.