CROCONIC ACID
Synonym(s):4,5-Dihydroxy-4-cyclopentene-1,2,3-trione
- CAS NO.：488-86-8
- Empirical Formula: C5H2O5
- Molecular Weight: 142.07
- MDL number: MFCD00181389
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:59:07
What is CROCONIC ACID?
Chemical properties
gold-coloured powder
The Uses of CROCONIC ACID
Croconic acid is used to prepare 1,3-bis-(2-dimethylamino-5-thienyl)croconine by reacting with dimethyl-thiophen-2-yl-amine. It is also used in organic synthesis and employed as a dye for biological research purposes. Further, it is involved in the preparation of ethers such as dimethyl croconate. In addition to this, it acts as a ligand and form coordination complexes with metals such as barium, copper, silver and lead.
What are the applications of Application
Croconic acid is a useful dye for biological research purposes
Properties of CROCONIC ACID
| Melting point: | >300 °C(lit.) |
| Boiling point: | 291.7°C |
| Density | 2.3110 |
| refractive index | 1.6400 (estimate) |
| storage temp. | room temp |
| form | Powder or Crystals |
| pka | 0.92±0.25(Predicted) |
| color | Yellow |
| Water Solubility | Soluble in water and ethanol. |
| BRN | 2043130 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
Safety information for CROCONIC ACID
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for CROCONIC ACID
| InChIKey | RBSLJAJQOVYTRQ-UHFFFAOYSA-N |
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