Molekula
Dichloroacetic acid
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
Dichloroacetic acid (DCA) is a chlorinated short-chain fatty acid widely used as a reagent in organic synthesis, a metabolic inhibitor in biochemical research, and a detritylation reagent in solid-phase oligonucleotide synthesis. It appears as a colorless to pale yellow liquid with a pungent odor. This chemical has a CAS number of 79-43-6, a molecular formula of Cl2CHCOOH, and a molecular weight of 128.94. It must be stored between 2 to 8°C and carries a Danger signal word due to its corrosive and hazardous properties. Molekula supplies Dichloroacetic acid 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.
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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 | Transparent to yellow liquid. |
| Assay/Purity | ≥99% |
| Water | ≤0.05% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 113 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Liquid |
| Odour | Pungent odor |
| Melting Point | 13.5 °C |
| Boiling Point | 194 °C |
| Density | 1.56 (relative, water = 1) |
| Water Solubility | Miscible with water |
| Solubility (other solvents) | Miscible with ethanol, diethyl ether; soluble in acetone; slightly soluble in carbon tetrachloride |
| Vapour Pressure | 19 Pa at 20 °C |
| Refractive Index | 1.4658 |
| pKa | pKa = 1.26 |
| log P (octanol/water) | 0.92 |
Source: PubChem CID 6597 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90031768 |
| CAS Number | 79-43-6 |
| IUPAC Name | 2,2-dichloroacetic acid |
| EC Number | 201-207-0 |
| Molecular Formula | Cl2CHCOOH |
| Molecular Weight | 128.94 |
| Exact Mass | 127.9432 |
| SMILES | C(C(=O)O)(Cl)Cl |
| InChIKey | JXTHNDFMNIQAHM-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H2Cl2O2/c3-1(4)2(5)6/h1H,(H,5,6) |
| PubChem CID | 6597 |
| UN Number | UN1764 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2915401000 |
| Tariff Code | 2915400090 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H311 Toxic in contact with skin
- H314 (sub cat. 1A) Causes severe skin burns and eye damage
- H351 Suspected of causing cancer
- H360 May damage fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
Precautionary statements
- 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
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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.
Synonyms
- 2,2-Dichloroacetic acid
- Acetic acid, dichloro-
- Bichloracetic acid
- Bichloroacetic Acid
- DCA (acid)
- Dichloracetic acid
- Dichlorethanoic acid
- Dichloroethanoic acid
- Kyselina dichloroctova
- Urner's liquid
Frequently asked questions
What is dichloroacetic acid commonly used for?
Dichloroacetic acid is primarily used as an intermediate in organic synthesis, as a detritylation reagent in solid-phase oligonucleotide synthesis, and in laboratory applications for deprotection reactions in peptide synthesis.
What is the molecular formula and molecular weight of dichloroacetic acid?
The molecular formula is Cl₂CHCOOH, and the molecular weight is 128.94 g/mol.
How should dichloroacetic acid be stored?
Store dichloroacetic acid at 2–8°C in a cool, dry place, away from incompatible substances and properly sealed to prevent moisture absorption.
What grades of dichloroacetic acid does Molekula supply?
Molekula supplies analytical and reagent-grade dichloroacetic acid, suitable for research and industrial applications.
Can Molekula supply dichloroacetic acid in bulk quantities?
Yes, Molekula can provide dichloroacetic acid in bulk, with quantities tailored to your specific requirements—contact us for pricing and availability.
What documentation comes with an order of dichloroacetic acid?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.