Molekula
Aurintricarboxylic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Aurintricarboxylic acid is a triphenylcarboxylic acid derivative used as a research chemical in biochemistry and pharmacology, particularly as an inhibitor of nucleic acid-binding proteins and enzymes. It also serves as a histological dye and fluorochrome, and its ammonium salt, aluminon, is a reagent for colorimetric determination of aluminum in water and other samples. It has a molecular formula of C22H14O9, a molecular weight of 422.34 g/mol, and is available under CAS number 4431-00-9. Stored at ambient temperature, it carries a warning signal word due to potential hazards. Molekula supplies Aurintricarboxylic 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
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.
-
5 g — £62.10 per pack ex VAT · £74.52 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 | Dark red powder |
| Melting Point | c.a. 300°C |
| Loss on Drying | ≤ 5.00 % |
| Bioburden | ≥ 50 CFU/gm |
| Endotoxin | ≤ 0.02 EU/mg |
| Assay (aqueous acid-base titration) | ≥ 90.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 21152979 |
| CAS Number | 4431-00-9 |
| IUPAC Name | 5-[(3-carboxy-4-hydroxyphenyl)-(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxybenzoic acid |
| Molecular Formula | C[C6H3(OH)COOH]2C6H3(O)COOH |
| Molecular Weight | 422.34 |
| Exact Mass | 422.0638 |
| SMILES | C1=CC(=C(C=C1C(=C2C=CC(=O)C(=C2)C(=O)O)C3=CC(=C(C=C3)O)C(=O)O)C(=O)O)O |
| InChIKey | GIXWDMTZECRIJT-UHFFFAOYSA-N |
| InChI | InChI=1S/C22H14O9/c23-16-4-1-10(7-13(16)20(26)27)19(11-2-5-17(24)14(8-11)21(28)29)12-3-6-18(25)15(9-12)22(30)31/h1-9,23-24H,(H,26,27)(H,28,29)(H,30,31) |
| PubChem CID | 2259 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29189943 |
| Tariff Code | 2918999090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- 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
- 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, Russian, 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.
Synonyms
- 5,5'-(3-Carboxy-4-oxocyclohexa-2,5-dienylidenemethylene)di(salicylic acid)
- Acid, Aurintricarboxylic
- Aluminon free acid
- aurine tricarboxylic acid
- Aurintricarboxylic Acids (Technical Grade)
- Aurintricarboxylicacid(ATA)
- chrome violet CG free acid
- Dupont ATA
- Lopac-A-1895
- Lopac0_000054
Frequently asked questions
What is aurintricarboxylic acid used for?
Aurintricarboxylic acid is primarily used as a research chemical in studies involving nucleic acid interactions and enzyme inhibition, particularly in antiviral and anti-inflammatory research.
What is the chemical formula and molecular weight of aurintricarboxylic acid?
The formula is C22H14O9 and the molecular weight is 422.34 g/mol.
How should aurintricarboxylic acid be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for aurintricarboxylic acid?
Available in research grade; specific purity details are provided upon request.
Can Molekula supply aurintricarboxylic acid in bulk?
Yes, Molekula can supply aurintricarboxylic acid in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of aurintricarboxylic 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.