Molekula
Oxalyl chloride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Oxalyl chloride is a reactive organic compound used primarily as a reagent for converting carboxylic acids to acyl chlorides and in the synthesis of various pharmaceuticals and agrochemicals. It is a colorless liquid with a pungent odor, highly corrosive, and requires careful handling. CAS: 79-37-8, Molecular Formula: ClCOCOCl, Molecular Weight: 126.93 g/mol, Storage: Ambient, Signal Word: Danger. Molekula supplies oxalyl chloride 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
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 — £30.00 per pack ex VAT · £36.00 inc. VAT
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100 g — £73.10 per pack ex VAT · £87.72 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 | Colorless to light yellow liquid |
| Refractive Index | 1.4289 (20°C) |
| Colour (Pt-Co) | ≤200 |
| Assay | ⩾ 99.0% |
| Clarity | Free from suspended or foreign matter |
| Carbon tetrachloride | ≤0.10% |
| Phosgene | ≤200 mg/kg |
| Identification of Oxalyl Chloride | Corresponds to the standard |
| Trichloro acetyl chloride | ≤0.2% |
| Oxidising matters (Chlorine and Phosgene) | ≤350 mg/kg |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 11 °C |
| Transport Class | 4.3 (8) |
| Packing Group | I |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | -16 °C |
| Boiling Point | 63.5 °C at 760 mmHg |
| Vapour Pressure | 150 mmHg |
Source: PubChem CID 65578 (PAC Chemical Database, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 30419589 |
| CAS Number | 79-37-8 |
| IUPAC Name | oxalyl dichloride |
| EC Number | 201-200-2 |
| Molecular Formula | ClCOCOCl |
| Molecular Weight | 126.93 |
| Exact Mass | 125.9275 |
| SMILES | C(=O)(C(=O)Cl)Cl |
| InChIKey | CTSLXHKWHWQRSH-UHFFFAOYSA-N |
| InChI | InChI=1S/C2Cl2O2/c3-1(5)2(4)6 |
| PubChem CID | 65578 |
| UN Number | UN3129 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29171920 |
| Tariff Code | 2917192000 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Toxic
GHS06
Hazard statements
- EUH014 Reacts violently with water
- EUH029 Contact with water liberates toxic gas
- EUH071 Corrosive to the respiratory tract
- H260 In contact with water releases flammable gases which may ignite spontaneously
- H301 + H311 Toxic if swallowed or in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, English (US).
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.
Synonyms
- (COCl)2
- C2Cl2O2
- Ethanedioyl chloride
- Ethanedioyl dichloride
- Oxalic acid chloride
- Oxalic acid dichloride
- Oxalic dichloride
- Oxaloyl chloride
- Oxalyl dichloride
Frequently asked questions
What is oxalyl chloride used for?
Oxalyl chloride is primarily used as a reagent in organic synthesis, particularly for converting carboxylic acids to acyl chlorides and in the synthesis of other organic compounds.
What is the chemical formula and molecular weight of oxalyl chloride?
The formula is ClCOCOCl and the molecular weight is 126.93 g/mol.
How should oxalyl chloride be stored?
It should be stored at ambient temperature in a tightly sealed container, away from moisture and incompatible materials.
What grade of oxalyl chloride does Molekula supply?
Molekula supplies oxalyl chloride in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply oxalyl chloride in bulk?
Yes, Molekula can supply oxalyl chloride in bulk quantities; please contact our sales team for volume pricing and availability.
What documentation comes with an order of oxalyl chloride?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
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.