Molekula
2,3,5-Triiodobenzoic 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
2,3,5-Triiodobenzoic Acid is an iodinated aromatic compound primarily used in plant science as an auxin polar transport inhibitor (antiauxin) and as a plant growth regulator. It is also employed as a growth retardant and defoliant, and as a reagent in organic synthesis. This solid powder has a CAS number of 88-82-4, a molecular formula of I3C7H3O2 (corrected from I3C6H2CO2H), and a molecular weight of 499.81 g/mol. It requires cold storage between -15°C and -20°C and carries a signal word of "Warning."
Molekula supplies 2,3,5-Triiodobenzoic Acid at ≥ 98.0% purity in 25 g packs, from £112.20 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
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.
-
25 g — £93.50 per pack ex VAT · £112.20 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 | off-white to brown powder |
| Identification | Conforms to reference |
| Purity | ≥ 98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to off-white amorphous powder |
| Melting Point | 225 °C |
| Solubility (other solvents) | Insoluble in water; slightly soluble in benzene; very soluble in ethanol, ether |
Source: PubChem CID 6948 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90028179 |
| CAS Number | 88-82-4 |
| IUPAC Name | 2,3,5-triiodobenzoic acid |
| EC Number | 201-859-6 |
| Molecular Formula | I3C6H2CO2H |
| Molecular Weight | 499.81 |
| Exact Mass | 499.7267 |
| SMILES | C1=C(C=C(C(=C1C(=O)O)I)I)I |
| InChIKey | ZMZGFLUUZLELNE-UHFFFAOYSA-N |
| InChI | InChI=1S/C7H3I3O2/c8-3-1-4(7(11)12)6(10)5(9)2-3/h1-2H,(H,11,12) |
| PubChem CID | 6948 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29163979 |
| Tariff Code | 2916399090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- 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
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
- A 20812
- acide 2,3,5-triiodobenzoique
- Benzoic acid, 2,3,5-triiodo-
- Caswell No. 890A
- Floraltone
- Johnkolor
- Kyselina 2,3,5-trijodbenzoova
- Regin 8
- TIB
- TIBA
Frequently asked questions
What is 2,3,5-Triiodobenzoic Acid commonly used for?
It is primarily used as an auxin polar transport inhibitor (antiauxin), both as a research tool in plant physiology and as a plant growth regulator.
What is the chemical formula and molecular weight of 2,3,5-Triiodobenzoic Acid?
The chemical formula is I₃C₆H₂CO₂H and the molecular weight is 499.81 g/mol.
How should 2,3,5-Triiodobenzoic Acid be stored?
It should be stored at -15 to -20°C to maintain stability and prevent degradation.
What grade or purity is available for this product?
Molekula supplies 2,3,5-Triiodobenzoic Acid with a purity of ≥ 98.0%.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options for 2,3,5-Triiodobenzoic Acid, with quantities tailored to meet industrial or research-scale demands.
What documentation comes with an order of this product?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability.
Where can I buy 2,3,5-Triiodobenzoic Acid?
Directly from Molekula, which lists 2,3,5-Triiodobenzoic Acid in 25 g packs from £112.20 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.