| Identification | More | [Name]
Citrazinic acid | [CAS]
99-11-6 | [Synonyms]
2,6-DIHYDROXY-4-CARBOXYPYRIDINE
2,6-DIHYDROXYISONICOTINIC ACID
2,6-DIHYDROXYPYRIDINE-4-CARBOXYLIC ACID
2,6-DIOXYPYRIDINE-4-CARBOXYLIC ACID
4-PYRIDINECARBOXYLIC ACID, 2,6-DIHYDROXY-
AKOS BBS-00003808
AKOS NCG1-0104
CITRAZINIC ACID
LABOTEST-BB LT00071696
1,2-dihydro-6-hydroxy-2-oxo-4-pyridinecarboxylicaci
1,2-Dihydro-6-hydroxy-2-oxo-4-pyridinecarboxylicacid
1,2-dihydro-6-hydroxy-2-oxo-isonicotinicaci
2,6-Dihydroxy-4-pyridinecarboxylic acid
2,6-dihydroxy-4-Pyridinecarboxylicacid
2,6-dihydroxy-isonicotinicaci
4-Pyridinecarboxylic acid, 1,2-dihydro-6-hydroxy-2-oxo-
6-Hydroxy-2-oxo-1,2-dihydro-4-pyridinecarboxylic acid
citrazinicacfd
Kyselina citrazinova
kyselinacitrazinova | [EINECS(EC#)]
202-731-2 | [Molecular Formula]
C6H5NO4 | [MDL Number]
MFCD00006274 | [Molecular Weight]
155.11 | [MOL File]
99-11-6.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow powder | [Melting point ]
>300 °C(lit.)
| [Boiling point ]
278.88°C (rough estimate) | [density ]
0.65 g/cm3 | [refractive index ]
1.5423 (estimate) | [storage temp. ]
Inert atmosphere,2-8°C | [solubility ]
practically insoluble | [form ]
Powder | [pka]
2.54±0.20(Predicted) | [color ]
Yellow | [PH]
3.1-3.5 (100g/l, H2O)(slurry) | [Water Solubility ]
practically insoluble | [Detection Methods]
HPLC | [Merck ]
14,2325 | [BRN ]
383736 | [InChIKey]
CSGQJHQYWJLPKY-UHFFFAOYSA-N | [CAS DataBase Reference]
99-11-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Isonicotinic acid, 2,6-dihydroxy-,(99-11-6) | [EPA Substance Registry System]
99-11-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S22:Do not breathe dust . | [WGK Germany ]
1
| [RTECS ]
NS1400000
| [TSCA ]
Yes | [HS Code ]
29333999 |
| Hazard Information | Back Directory | [Chemical Properties]
yellow powder | [Uses]
2,6-Dihydroxypyridine-4-carboxylic acid was used to prepare 2,6-dibromo-4-(hexoxymethyl)pyridine. It was also used to synthesize the derivatives of oxazinones and pyrimidinones. | [Definition]
ChEBI: CITRAZINIC ACID is an aromatic carboxylic acid and a member of pyridines. | [Purification Methods]
The acid is normally a yellow powder with a greenish shade, but is white when ultra pure and turns blue on long standing. It is insoluble in H2O but slightly soluble in hot HCl and soluble in alkali or carbonate solutions. It is purified by precipitation from alkaline solutions with dilute HCl, and dried in a vacuum over P2O5. The ethyl ester has m 232o (evacuated tube) and a pKa of 4.81 in MeOCH2CH2OH [IR: Pitha Coll Czech Chem Comm 28 1408 1963]. [Beilstein 22/7 V 24.] |
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