1,4-Butane diisothiocyanate
1,4-Butane diisothiocyanate (CAS 4430-51-7) is a sulfur-containing organic compound with the molecular formula C6H8N2S2 and a molecular weight of 172.27 g/mol. It functions as a versatile building block in chemical synthesis, particularly in organic chemistry. Its reactive isothiocyanate groups allow it to participate in various coupling reactions and modifications, making it valuable for developing new materials and complex molecules. It is typically supplied at 97% purity.
- Synonyms
- Butane-1,4-diyl diisothiocyanate1,4-Diisothiocyanatobutane

Organic Synthesis Intermediate
1,4-Butane diisothiocyanate serves as a key intermediate in the synthesis of diverse organic molecules. Its difunctional nature allows for cross-linking or the introduction of thiourea linkages into larger structures.
Material Science Applications
This compound can be utilized in the development of polymers and functional materials. Its incorporation can impart specific properties, such as enhanced thermal stability or altered surface characteristics, owing to the sulfur and nitrogen atoms.
Pharmaceutical Research
As a building block, it can be employed in the exploration of novel drug candidates. The thiourea moiety is present in various biologically active compounds, making this a useful starting material for medicinal chemistry research.
| Molecular weight | 172.27 |
|---|---|
| Empirical formula | C6H8N2S2 |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 29-33 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26-39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,4-Butane diisothiocyanate used for?
+
1,4-Butane diisothiocyanate is primarily used as an intermediate and building block in organic synthesis, material science, and pharmaceutical research due to its reactive isothiocyanate groups.
What is the CAS number and molecular formula for 1,4-Butane diisothiocyanate?
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The CAS number is 4430-51-7 and the molecular formula is C6H8N2S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,4-Butane diisothiocyanate with an assay of 97%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade unless explicitly stated in the product data.
How should 1,4-Butane diisothiocyanate be handled safely?
+
1,4-Butane diisothiocyanate is classified as dangerous. It is harmful if swallowed and causes serious eye damage. Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, faceshields, and gloves. Handle in a well-ventilated area and avoid contact with eyes, skin, and clothing.
How is 1,4-Butane diisothiocyanate packed, shipped, and exported?
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Tech Serve Solutions professionally packs and exports chemicals globally, adhering to all relevant shipping and safety regulations for hazardous materials like 1,4-Butane diisothiocyanate.
How can I request a sample or quote for 1,4-Butane diisothiocyanate?
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Please contact our sales team through the website or by phone to request a sample or a quotation for 1,4-Butane diisothiocyanate.
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