Molekula
2-Mercapto-5-methoxy-1H-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
2-Mercapto-5-methoxy-1H-benzimidazole is an organic heterocyclic compound primarily used as a chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty polymers. It is also employed in corrosion inhibitors and as a reagent in organic synthesis. This product has a CAS number of 37052-78-1, with the molecular formula C8H8N2OS and a molecular weight of 180.23 g/mol. It is stored at ambient conditions but requires careful handling due to its hazardous nature, indicated by the signal word "Danger." Molekula supplies 2-Mercapto-5-methoxy-1H-benzimidazole 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 141 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 66787209 |
| CAS Number | 37052-78-1 |
| IUPAC Name | 5-methoxy-1,3-dihydrobenzimidazole-2-thione |
| EC Number | 253-326-2 |
| Molecular Formula | C8H8N2OS |
| Molecular Weight | 180.23 |
| Exact Mass | 180.0357 |
| SMILES | COC1=CC2=C(C=C1)NC(=S)N2 |
| InChIKey | KOFBRZWVWJCLGM-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H8N2OS/c1-11-5-2-3-6-7(4-5)10-8(12)9-6/h2-4H,1H3,(H2,9,10,12) |
| PubChem CID | 665603 |
| REACH Code | Y110 |
| HTS Code | 29339982 |
| Tariff Code | 2933998090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H370 Causes damage to organs
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- 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
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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-Dihydro-5-methoxy-2H-benzimidazole-2-thione
- 2-Mercapto-5-methoxybenzimidazole
- 2H-Benzimidazole-2-thione, 1,3-dihydro-5-methoxy-
- 5-methoxy-1H-benzimidazole-2-thiol
- 5-methoxy-1H-benzo[d]imidazole-2-thiol
- 5-methoxy-1H-benzo[d]imidazole-2(3H)-thione
- 5-Methoxy-2-benzimidazolethiol
- 5-Methoxy-2-mercaptobenzimidazole
Frequently asked questions
What is 2-Mercapto-5-methoxy-1H-benzimidazole commonly used for?
This compound is primarily used as a **corrosion inhibitor** in lubricants, fuels, and metalworking fluids, as well as a **synthetic intermediate** for pharmaceuticals and agrochemicals.
What is the molecular formula and molecular weight of this product?
The molecular formula is **C₈H₈N₂OS**, and the molecular weight is **180.23 g/mol**.
How should this chemical be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture, heat, and incompatible substances.
What purity grades are available for this product?
Molekula supplies this compound in **technical grade (95%+ purity)** and **analytical/pharmaceutical grade (98%+ purity)**—confirm availability for your specific needs.
Can Molekula supply this product in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 5 kg, 25 kg, and larger drums) for industrial and commercial customers—contact us for pricing and lead times.
What documentation is provided with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability and compliance.
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.