Molekula
Thiophosphoryl chloride
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
Thiophosphoryl chloride is a reactive inorganic phosphorus thiohalide used in organic synthesis, particularly in the preparation of phosphorothioate derivatives and as a reagent in pesticide and pharmaceutical manufacturing. It is a colorless to pale yellow liquid with a pungent odor. CAS: 3982-91-0, Molecular Formula: PSCl₃, Molecular Weight: 169.40 g/mol, Storage: Ambient, Signal Word: Danger.
Molekula supplies Thiophosphoryl chloride at ≥98% (GC) purity in 100 g packs, from $85.70 excl. 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.
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100 g — $85.70 per pack
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 liquid |
| Identification | Conforms to reference |
| Assay | ≥98% (GC) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless liquid |
| Odour | Pungent |
| Melting Point | -35 °C |
| Boiling Point | 125 °C |
| Density | 1.6 (relative, water = 1) |
| Vapour Pressure | 2.9 kPa at 25 °C |
| Refractive Index | 1.635 |
Source: PubChem CID 19883 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 75254135 |
| CAS Number | 3982-91-0 |
| IUPAC Name | trichloro(sulfanylidene)-lambda5-phosphane |
| EC Number | 223-622-6 |
| Molecular Formula | PSCl3 |
| Molecular Weight | 169.40 |
| Exact Mass | 167.8524 |
| SMILES | P(=S)(Cl)(Cl)Cl |
| InChIKey | WQYSXVGEZYESBR-UHFFFAOYSA-N |
| InChI | InChI=1S/Cl3PS/c1-4(2,3)5 |
| PubChem CID | 19883 |
| UN Number | UN1837 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2853.90.9090 |
| Tariff Code | 2853909090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- EUH029 Contact with water liberates toxic gas
- H302 Harmful if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H330 Fatal if inhaled
- H335 May cause respiratory irritation
- H402 Harmful to aquatic life
Precautionary statements
- 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
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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
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
- Fosforthiochlorid
- Phosphorothioic trichloride
- Phosphorothionic trichloride
- Phosphorous sulfochloride
- Phosphorous thiochloride
- Phosphorus sulfochloride
- Phosphorus thiochloride
- Thiophosphoric trichloride
- Thiophosphoryl trichloride
- Trichlorophosphine sulfide
Frequently asked questions
What is thiophosphoryl chloride used for?
Thiophosphoryl chloride is primarily used as a reagent in organic synthesis, particularly in the preparation of phosphorothioate compounds and as a sulfurizing agent.
What is the chemical formula and molecular weight of thiophosphoryl chloride?
The formula is PSCl3 and the molecular weight is 169.40 g/mol.
How should thiophosphoryl chloride be stored?
It should be stored at ambient temperature, in a cool, dry place, and kept away from moisture and incompatible materials.
What grade is available for thiophosphoryl chloride?
Molekula supplies thiophosphoryl chloride with an assay of ≥98% (GC).
Can Molekula supply thiophosphoryl chloride in bulk?
Yes, Molekula can supply thiophosphoryl chloride in bulk quantities—please contact our sales team for details.
What documentation comes with a purchase of thiophosphoryl chloride?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) compliant with GHS standards.
Where can I buy Thiophosphoryl chloride?
Directly from Molekula, which lists Thiophosphoryl chloride in 100 g packs from $85.70 excl. 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 Thiophosphoryl chloride dangerous goods for shipping?
Yes. Thiophosphoryl chloride ships as dangerous goods: UN1837, class 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.