| Identification | More | [Name]
Mucochloric acid | [CAS]
87-56-9 | [Synonyms]
2,3-DICHLORO-4-OXO-2-BUTENOIC ACID
2,3-DICHLOROMALEALDEHYDIC ACID
2,3-DICHLOROMALEIC ALDEHYDE ACID
A,B-DICHLORO-B-FORMYLACRYLIC ACID
Dichloroformylacrylic acid
DICHLOROMALEALDEHYDIC ACID
DICHLOROMALEALDEHYDRIC ACID
MUCOCHLORIC ACID
(2E)-2,3-Dichloro-4-oxo-2-butenoic acid
(z)-2,3-dichloro-4-oxo-2-butenoicacid
(z)-dichloro-4-oxomalealdehydicacid
(z)-malealdehydicaci
2,3-dichloro-3-formyl-acrylicaci
2-Butenoic acid, 2,3-dichlor-4-oxo-, (Z)-
2-Butenoic acid, 2,3-dichloro-4-oxo-, (Z)-
2-Butenoicacid,2,3-dichloro-4-oxo-,(Z)-
3,4-Dichloro-2-hydroxycrotonolactone
3,4-Dichloro-2-hydroxycrotonolactonic acid
3,4-dichloro-2-hydroxycrotonolactonicacid
3-dichloro-4-oxo-(z)-2-butenoicaci | [EINECS(EC#)]
201-752-4 | [Molecular Formula]
C4H2Cl2O3 | [MDL Number]
MFCD00006966 | [Molecular Weight]
168.96 | [MOL File]
87-56-9.mol |
| Chemical Properties | Back Directory | [Appearance]
WHITE TO LIGHT BEIGE CRYSTALLINE POWDER | [Melting point ]
125-128 °C(lit.)
| [Boiling point ]
238.75°C (rough estimate) | [density ]
1.85 | [refractive index ]
1.4730 (estimate) | [Fp ]
212 °F
| [storage temp. ]
Store below +30°C. | [solubility ]
27g/l | [form ]
Crystalline Powder | [pka]
0.28±0.44(Predicted) | [color ]
White to light beige | [PH]
2.4 (27g/l, H2O, 20℃) | [Water Solubility ]
SOLUBLE IN HOT WATER | [Merck ]
14,6297 | [BRN ]
1705641 | [CAS DataBase Reference]
87-56-9(CAS DataBase Reference) | [NIST Chemistry Reference]
Mucochloric acid(87-56-9) | [EPA Substance Registry System]
87-56-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,C | [Risk Statements ]
R25:Toxic if swallowed.
R34:Causes burns.
R37:Irritating to the respiratory system.
R42/43:May cause sensitization by inhalation and skin contact . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S22:Do not breathe dust . | [RIDADR ]
UN 2923 8/PG 3
| [WGK Germany ]
2
| [RTECS ]
AS7700000
| [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29183000 | [Safety Profile]
Poison by ingestion.
Moderate skin and severe eye irritant.
Questionable carcinogen with experimental
tumorigenic data. Mutation data reported.
When heated to decomposition it emits
toxic fumes of Cl-. | [Hazardous Substances Data]
87-56-9(Hazardous Substances Data) | [Toxicity]
LD50 in rats: 0.5-1.0 g/kg orally; 10-25 mg/kg i.p., Fassett in Industrial Hygiene and Toxicology vol. II, F. A. Patty, Ed. (Interscience, New York, 2nd ed., 1962) p 1977 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Manganese dioxide | [Preparation Products]
2,3-DICHLORO-5,8-DIHYDROXY-1,4-NAPHTHOQUINONE-->Pyridaben-->2-Aminopyrimidine-->4-CHLORO-2-(TETRAHYDRO-2H-PYRAN-2-YL)-5-HYDROXYPYRIDAZIN-3(2H)-ONE-->5-CHLORO-2-METHOXYPYRIMIDINE-4-CARBOXYLIC ACID-->5-Chloro-2-(methylsulfonyl)pyrimidine-->5-CHLORO-2-(METHYLSULFONYL)PYRIMIDINE-4-CARBOXYLIC ACID-->4,5-Dichloro-3(2H)-pyridazinone-->Pyridaben E.C.-->Pyridaben W.P.-->2-CHLOROMALONALDEHYDE-->5-Chloropyrimidin-2-amine-->1-PHENYL-4,5-DICHLORO-6-PYRIDAZONE-->5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid-->2-Butenedioic acid, 2,3-dichloro-, (2Z)--->2-(TERT-BUTYL)-4,5-DICHLORO-2,3-DIHYDROPYRIDAZIN-3-ONE |
| Hazard Information | Back Directory | [Chemical Properties]
WHITE TO LIGHT BEIGE CRYSTALLINE POWDER | [Uses]
Mucochloric Acid is an intermediate product of the herbicide Burex that can cause poisioning and skin damage upon exposure. Mucochloric Acid is also a chlorine disinfection byproduct in drinking water with mutagenic activity. | [Purification Methods]
Crystallise the acid twice from water (charcoal). [Beilstein 3 IV 1720.] |
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