3,4-Pyridinedicarboxylic acid
Synonym(s):Cinchomeronic acid
- CAS NO.：490-11-9
- Empirical Formula: C7H5NO4
- Molecular Weight: 167.12
- MDL number: MFCD00006392
- EINECS: 207-705-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-21 17:11:28
What is 3,4-Pyridinedicarboxylic acid?
Chemical properties
white to slightly beige fine crystalline powder
Definition
ChEBI: Cinchomeronic acid is a pyridinedicarboxylic acid. It is a conjugate acid of a cinchomeronate(1-).
Purification Methods
Crystallise the acid from H2O or dilute aqueous HCl. It has also been purified via the dimethyl ester which is distilled (b 95-100o/1.5mm) and hydrolysed with 3.5N HCl, evaporated and recrystallised. [Armarego & Evans J Appl Chem 12 45 1962, Foye et al. J Med Chem 9 61 1966, Beilstein 22 H 155, 22 I 534, 22 II 106, 22 III/IV 1641, 22/4 V 135.]
Properties of 3,4-Pyridinedicarboxylic acid
| Melting point: | 262 °C (dec.) (lit.) |
| Boiling point: | 295.67°C (rough estimate) |
| Density | 1.5216 (rough estimate) |
| refractive index | 1.6280 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | 2.34g/l |
| pka | 1.00±0.10(Predicted) |
| form | Fine Crystalline Powder |
| color | White to slightly beige |
| Water Solubility | 2.34g/L(25 ºC) |
| Merck | 14,2283 |
| BRN | 137242 |
| CAS DataBase Reference | 490-11-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 3,4-Pyridinedicarboxylic acid(490-11-9) |
Safety information for 3,4-Pyridinedicarboxylic 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 |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. 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 3,4-Pyridinedicarboxylic acid
New Products
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