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| CAS No.: | 95-87-4 |
|---|---|
| Name: | 2,5-Dimethylphenol |
| Article Data: | 136 |
| Molecular Structure: | |
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|
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| Formula: | C8H10O |
| Molecular Weight: | 122.167 |
| Synonyms: | 2,5-Xylenol(8CI);1,2,5-Xylenol;1-Hydroxy-2,5-dimethylbenzene;2,5-Dimethylphenol;2-Hydroxy-p-xylene;3,6-Dimethylphenol;NSC 2599;p-Xylenol; |
| EINECS: | 202-461-5 |
| Density: | 1.041 g/cm3 |
| Melting Point: | 75-77 °C |
| Boiling Point: | 211.1 °C at 760 mmHg |
| Flash Point: | 86.7 °C |
| Solubility: | 1 g/100 mL (60 °C) in water |
| Appearance: | White to cream colored crystals |
| Hazard Symbols: |
 T,  N
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| Risk Codes: | 24/25-34-51/53 |
| Safety: | 26-36/37/39-45-61 |
| Transport Information: | UN 2261 6.1/PG 2 |
| PSA: | 20.23000 |
| LogP: | 2.00900 |
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Specification
The 2,5-Xylenol , with the register number 95-87-4, has other names as xylenol(2,5-) ; 1,2,5-xylenol ; 1,4-dimethyl-2-hydroxybenzene ; 1-hydroxy-2,5-dimethylbenzene ; 2,5-dimethyl-pheno ; 3,6-dimethylphenol ; 3,6-xylenol ; 6-methyl-m-cresol .
The characteristics of this kind of chemical are as the following:(1)#H bond acceptors: 1 ; (2)#H bond donors: 1 ; (3)#Freely Rotating Bonds: 1 ; (4)Polar Surface Area: 20.23 ; (5)Index of Refraction: 1.54 ; (6)Molar Refractivity: 37.78 cm3 ; (7)Molar Volume: 120.4 cm3 ; (8)Polarizability: 14.97 ×10-24 cm3 ; (9)Surface Tension: 37.2 dyne/cm ; (10)Density: 1.014 g/cm3 ; (11)Flash Point: 86.7 °C ; (12)Enthalpy of Vaporization: 46.57 kJ/mol ; (13)Boiling Point: 211.1 °C at 760 mmHg ; (14)Vapour Pressure: 0.128 mmHg at 25°C .
It is a kind of white acicular crystalline and it is soluble in water and ethanol. Besides, it could sublimate and could volatile with steam. As for its product categories, they are various, including aromatic phenols;intermediatesofgemfibroil.
As being a kind of toxic chemical, it could cause damage to health and if in contact with skin and if swallowed, it will bring great damage to our health. For another thing, it is dangerous for the environment for it is toxic to aquatic organisms, which may cause long-term adverse effects in the aquatic environment; And it could also present an immediate or delayed danger to one or more components of the environment. Except all these, it will cause burns.
Because of the harmful properties, you should be very careful while dealing with this chemical. Wear suitable protective clothing, gloves and eye/face protection; If in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; If in case of accident or if you feel unwell seek medical advice immediately (show the label where possible). Beside, remember to avoid releasing to the environment and refer to special instructions/safety data sheet. If you need more safety information, you could refer to the WGK Germany 3.
When it comes to its usage, it is widely applied in many fields, such as being the intermediate in organic synthesis and be used in dying and the synthesis of lipid-lowering drugs of Gemfibrozil. What's more, there is a simple way to get this chemical. Prepare the raw material of xylidine and then have the diazotization and the hydrolyzation. Then you could get it.
Below are the toxicity of this chemical:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | oral | 383mg/kg (383mg/kg) | BEHAVIORAL: ATAXIA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Hygiene and Sanitation Vol. 33(7-9), Pg. 329, 1968. |
| rabbit | LD50 | oral | 938mg/kg (938mg/kg) | BEHAVIORAL: ATAXIA LUNGS, THORAX, OR RESPIRATION: DYSPNEA BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) | Hygiene and Sanitation Vol. 33(7-9), Pg. 329, 1968. |
| rat | LD50 | oral | 444mg/kg (444mg/kg) | Gigiena Truda i Professional'naya Patologiya v Estonskoi SSR. Labor Hygiene and Occupational Pathology in the Estonian SSR. Vol. 8, Pg. 145, 1972. | |
| rat | LD50 | unreported | 730mg/kg (730mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | Journal of Pharmacology and Experimental Therapeutics. Vol. 53, Pg. 227, 1935. |