Molekula
Thiabendazole (2-(4-thiazolyl)benzimidazole)
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
Thiabendazole (2-(4-thiazolyl)benzimidazole) is a heterocyclic compound used primarily as an antifungal agent in agricultural and veterinary applications. It is applied mainly as a post-harvest fungicide to control spoilage of citrus fruit and to protect seed potatoes, and serves as a biocide in paints, adhesives and wood preservatives. As a benzimidazole fungicide, it binds fungal β-tubulin and blocks microtubule assembly, disrupting mitosis, and is effective against a broad spectrum of plant pathogens. Available in powder form with a purity of ≥98%, it has a CAS number of 148-79-8, molecular formula C10H7N3S, and molecular weight of 201.25 g/mol. Stored at ambient temperatures, it carries a warning signal word due to potential health hazards. Molekula supplies Thiabendazole 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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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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100 g — £80.90 per pack ex VAT · £97.08 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 | white to off-white crystal powder |
| Melting Point | 296-303°C |
| Water | ≤0.5% |
| Assay | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Odour | Odorless |
| Melting Point | 300 °C |
| Water Solubility | 50 mg/L at 25 °C |
| Solubility (other solvents) | Slightly soluble in ethanol |
| Vapour Pressure | 4 × 10⁻⁹ mmHg at 25 °C |
| pKa | pKa = 4.64 (at 25 °C) |
| log P (octanol/water) | 2.47 |
Source: PubChem CID 5430 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 18010795 |
| CAS Number | 148-79-8 |
| IUPAC Name | 4-(1H-benzimidazol-2-yl)-1,3-thiazole |
| EC Number | 205-725-8 |
| Molecular Formula | C10H7N3S |
| Molecular Weight | 201.25 |
| Exact Mass | 201.0361 |
| SMILES | C1=CC=C2C(=C1)NC(=N2)C3=CSC=N3 |
| InChIKey | WJCNZQLZVWNLKY-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H7N3S/c1-2-4-8-7(3-1)12-10(13-8)9-5-14-6-11-9/h1-6H,(H,12,13) |
| PubChem CID | 5430 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2934.10.90.00 |
| Tariff Code | 2934100090 |
Safety & GHS
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H303 May be harmful if swallowed
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
- P501 Dispose of contents/container to an approved waste disposal plant
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
- 2-(4-Thiazolyl)benzimidazole
- Lombristop
- Mintezol
- Minzolum
- Omnizole
- thiabendazole
- Thiabenzole
- Thibenzole
- Tiabendazol
- Tiabendazole
Frequently asked questions
What is Thiabendazole used for?
Thiabendazole is primarily used as a fungicide in agriculture and as an antiparasitic agent in veterinary medicine.
What is the chemical formula and molecular weight of Thiabendazole?
The formula is C10H7N3S with a molecular weight of 201.25 g/mol.
How should Thiabendazole be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade of Thiabendazole does Molekula supply?
Molekula supplies Thiabendazole in technical grade; custom grades available upon request.
Can Molekula supply Thiabendazole in bulk?
Yes, Molekula can supply Thiabendazole in bulk quantities; please contact sales for details.
What documentation comes with a Thiabendazole order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation available 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.