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| CAS No.: | 2437-29-8 |
|---|---|
| Name: | Basic Green 4 |
| Molecular Structure: | |
|
|
|
| Formula: | 2(C23H25N2).2(C2HO4).C2H2O4 |
| Molecular Weight: | 927.02 |
| Synonyms: | Methanaminium, N-(4-((4-(dimethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, ethanedioate, ethanedioate (2:2:1);Malachite Green Oxalate;Ammonium, (4-(p-(dimethylamino)-alpha-phenylbenzylidene)-2,5-cyclohexadien-1-ylidene)-dimethyl-, oxalate (2:1), oxalate (1:1);Malachitegreen;Basic Green 4, malachite green; |
| EINECS: | 219-441-7 |
| Melting Point: | 164 °C (dec.) |
| Solubility: | 60 g/L (20 °C) in water |
| Appearance: | dark green crystals with a metallic luster |
| Hazard Symbols: |
 Xn,  N
|
| Risk Codes: | 22-41-50/53-63-25-21-40-36/37/38-20/21/22 |
| Safety: | 26-39-45-61-60-46-36/37-2-36/37/39-36-22 |
| Transport Information: | UN 2811 6.1/PG 3 |
| PSA: | 241.96000 |
| LogP: | 3.58460 |
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Chemistry
Molecular Structure of Basic Green 4 (CAS NO.2437-29-8):
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IUPAC Name: [4-[(4-dimethylaminophenyl)-phenylmethylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium; 2-hydroxy-2-oxoacetate; oxalic acid
Molecular formula: C52H54N4O12
Molecular Weight: 927
CAS: 2437-29-8
Merck: 14,5699
BRN: 3644550
EINECS: 219-441-7
Melting point: 164°C (dec.)
Storage temp: Store at RT
Water Solubility: 60 g/L (20 °C)
Appearance: dark green crystals with a metallic luster
Stability: Stable. Substances to be avoided include strong oxidizing agents
Product Categories: Ion Association; Analytical Chemistry
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LDLo | oral | 50mg/kg (50mg/kg) | Archives of Toxicology. Vol. 56, Pg. 43, 1984. | |
| rat | LD | skin | > 2gm/kg (2000mg/kg) | Archives of Toxicology. Vol. 56, Pg. 43, 1984. | |
| rat | LD50 | oral | 275mg/kg (275mg/kg) | BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" GASTROINTESTINAL: OTHER CHANGES | Archives of Toxicology. Vol. 56, Pg. 43, 1984. |
Safety Profile
Poison by ingestion. A severe eye irritant. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also Oxalates.
The Hazard Codes of Basic Green 4 (CAS NO.2437-29-8): 
Xn,
N
HazardClass: 6.1(b)
Risk Statements information:
21: Harmful in contact with skin
22: Harmful if swallowed
25: Toxic if swallowed
41: Risk of serious damage to eyes
63: Possible risk of harm to the unborn child
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
50/53: Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Safety Statements information:
2: Keep out of the reach of children
22: Do not breathe dust
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
39: Wear eye/face protection
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
46: If swallowed, seek medical advice immediately and show this container or label
60: This material and/or its container must be disposed of as hazardous waste
61: Avoid release to the environment. Refer to special instructions safety data sheet
36/37: Wear suitable protective clothing and gloves
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: BQ1190000
PackingGroup: III
HS Code: 32041300
Specification
Basic Green 4 , with CAS number of 2437-29-8, can be called Ammonium, (4-(p-(dimethylamino)-alpha-phenylbenzylidene)-2,5-cyclohexadien-1-ylidene)-dimethyl-, oxalate (2:1), oxalate (1:1) ; Bis((4-(4-(dimethylamino)benzhydrylidene)cyclohexa-2,5-dien-1-ylidene)dimethylammonium) oxalate, dioxalate ; Methanaminium, N-(4-((4-(dimethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, ethanedioate (2:2:1) ; Methanaminium, N-(4-((4-(dimethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, ethanedioate, ethanedioate (2:2:1) . It is a dark green crystals with a metallic luster.