Molekula
Ethyl isothiocyanate
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
Ethyl isothiocyanate is a volatile organic compound used in organic synthesis and as a reagent in the production of pesticides and pharmaceuticals. It is a colorless to pale yellow liquid with a pungent odor. CAS: 542-85-8, Molecular formula: C3H5NS, Molecular weight: 87.14 g/mol, Storage: Ambient, Signal word: Danger.
Molekula supplies Ethyl isothiocyanate at ≥98% purity (GC) in 100 g packs, from £97.20 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 7 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.
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100 g — £81.00 per pack ex VAT · £97.20 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 | Colourless to light yellow liquid |
| Density | 0.999 - 1.001 |
| Water | ≤0.5% |
| Purity (GC) | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 24 °C |
| Transport Class | 3 (6.1, 8) |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Boiling Point | 130-132 °C |
| Solubility (other solvents) | Very slightly soluble in water; freely soluble in ether |
Source: PubChem CID 10966 (Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 90027109 |
| CAS Number | 542-85-8 |
| IUPAC Name | isothiocyanatoethane |
| EC Number | 208-831-2 |
| Molecular Formula | C3H5NS |
| Molecular Weight | 87.14 |
| Exact Mass | 87.0143 |
| SMILES | CCN=C=S |
| InChIKey | HBNYJWAFDZLWRS-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H5NS/c1-2-4-3-5/h2H2,1H3 |
| PubChem CID | 10966 |
| UN Number | UN3286 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2930904950 |
| Tariff Code | 2930909599 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Toxic
GHS06
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H225 Highly flammable liquid and vapour
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H400 Very toxic to aquatic life
Precautionary statements
- P231 Handle under inert gas
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P307+311 IF exposed: Call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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
- 1-Isothiocyanatoethane #
- Epitope ID:243753
- Ethane, isothiocyanato-
- FEMA NO. 4420
- Isothiocyanatoethane
- Isothiocyanic acid, ethyl ester
- Isothiocyanic Acid, Ethyl Ester; Isothiocyanatoethane; 1-Isothiocyanatoethane;
Frequently asked questions
What is ethyl isothiocyanate used for?
Ethyl isothiocyanate is primarily used as a chemical intermediate in the synthesis of agrochemicals and pharmaceuticals.
What is the chemical formula and molecular weight of ethyl isothiocyanate?
The formula is C3H5NS with a molecular weight of 87.14 g/mol.
How should ethyl isothiocyanate be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of ethyl isothiocyanate does Molekula supply?
Molekula supplies ethyl isothiocyanate as a colourless to light yellow liquid with a purity of at least 98% by GC and a water content of no more than 0.5%.
Can Molekula supply ethyl isothiocyanate in bulk?
Yes, Molekula can supply ethyl isothiocyanate in bulk quantities upon request.
What documentation comes with an order of ethyl isothiocyanate?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Where can I buy Ethyl isothiocyanate?
Directly from Molekula, which lists Ethyl isothiocyanate in 100 g packs from £97.20 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.
Is Ethyl isothiocyanate dangerous goods for shipping?
Yes. Ethyl isothiocyanate ships as dangerous goods: UN3286, class 3 (6.1, 8), packing group II.
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.