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| 化学名: | 2,5-ジメチルフェノール | | 英語化学名: | 2,5-Dimethylphenol | | 别名: | XYLENOL(2,5-);1,4-Dimethyl-2-hydroxybenzene;1-Hydroxy-2,5-dimethylbenzene;2,5-dimethyl-pheno;2,5-DIMETHYLPHENOL;3,6-Dimethylphenol;3,6-Xylenol;6-Methyl-m-cresol | | CAS番号: | 95-87-4 | | 分子式: | C8H10O | | 分子量: | 122.16 | | EINECS: | 202-461-5 | | カテゴリ情報: | Antioxidant;INTERMEDIATESOFGEMFIBROIL;Aromatic Phenols | | Mol File: | 95-87-4.mol |  |
| 融点 | 75-77 °C | | 沸点 | 212 °C(lit.) | | 比重(密度) | 0.971 g/mL at 25 °C(lit.) | | 蒸気圧 | 0.208 hPa (25 °C) | | 屈折率 | 1.5120 | | FEMA | 3595 | 2,5-XYLENOL | | 闪点 | 85 °C | | 貯蔵温度 | Store below +30°C. | | 溶解性 | 3.54g/l slightly soluble | | 外見 | Crystals | | 酸解離定数(Pka) | pK1:10.22 (25°C) | | 色 | slightly brown | | 臭い (Odor) | at 0.10 % in propylene glycol. sweet naphthyl phenolic smoke bacon | | においのタイプ | phenolic | | 爆発限界(explosive limit) | 1.4%(V) | | 水溶解度 | 1 g/100 mL (60 ºC) | | Merck | 14,10082 | | JECFA Number | 706 | | BRN | 1099260 | | 暴露限界値 | ACGIH: TWA 1 ppm | | InChIKey | NKTOLZVEWDHZMU-UHFFFAOYSA-N | | LogP | 2.34-2.6 at 25℃ | | CAS データベース | 95-87-4(CAS DataBase Reference) | | NISTの化学物質情報 | Phenol, 2,5-dimethyl-(95-87-4) | | EPAの化学物質情報 | 2,5-Dimethylphenol (95-87-4) |
| | 2,5-ジメチルフェノール Usage And Synthesis |
| 外観 | 白色～うすい褐色, 結晶～結晶性粉末又は塊 | | 溶解性 | エタノール及びアセトンに溶けやすく、水にほとんど溶けない。 | | 用途 | 薬用石鹸、殺菌洗浄剤、殺虫剤、医薬中間体,樹脂原料 | | 化学的特性 | 2,5-Xylenol has a creosote, sweet, medicinal taste. | | 化学的特性 | WHITE TO CREAM COLORED CRYSTALS | | 天然物の起源 | Reported found in coffee, smoked fatty fish, processed lean fish, malt whiskey, Scotch blended whiskey, katsuobushi
(dried bonito) and kumazasa (Sasa albo-marginata). | | 使用 | Used to make phenolic resins and (in isomeric mixtures) as an antioxidant for lubricating oils, gasoline, and elastomers. Also used as perfuming agents. | | 定義 | ChEBI: 2,5-xylenol is a member of the class of phenols that phenol substituted by methyl groups at positions 2 and 5. It has a role as a volatile oil component and an animal metabolite. It derives from a hydride of a p-xylene. | | Aroma threshold values | Detection: 400 ppb | | Taste threshold values | Taste characteristics at 10 ppm: musty, chemical, stringent and phenolic. | | 一般的な説明 | Colorless to off-white crystalline solid. Odor threshold concentration 0.4 mg/L. Taste threshold concentration 0.5 mg/L. | | 空気と水の反応 | 2,5-Dimethylphenol is hygroscopic. Insoluble in water. | | 反応プロフィール | 2,5-Dimethylphenol is incompatible with bases, acid chlorides, acid anhydrides and oxidizing agents. 2,5-Dimethylphenol corrodes steel, brass, copper and copper alloys. | | 健康ハザード | Symptoms of exposure to this compound may include severe irritation and burns of the skin and eyes; irritation of the respiratory tract, dizziness, stomach pain, exhaustion, coma and damage to the liver or kidneys. Other symptoms include headache, nausea and vomiting. It may cause corrosion of the tissues of the mucous membranes and upper respiratory tract, eyes and skin. Inhalation may result in burning sensation, coughing, wheezing, laryngitis and shortness of breath. Inhalation may be fatal as a result of spasm, inflammation and edema of the larynx and bronchi; chemical pneumonitis and pulmonary edema. Symptoms of exposure to this class of compounds include skin sensitization, profuse sweating, painless blanching or erythema of the skin, intense thirst, diarrhea, cyanosis from methemoglobinemia, hyperactivity, stupor, blood pressure fall, hyperpnea, abdominal pain, hemolysis and convulsions. If death from respiratory failure is not immediate, jaundice and oliguria or anuria may occur. | | 火災危険 | Flash point data for 2,5-Dimethylphenol are not available. 2,5-Dimethylphenol is probably combustible. | | 安全性プロファイル | Poison by ingestion.
Moderately toxic by an unspecified route.
When heated to decomposition it emits
acrid smoke and irritating fumes.
Questionable carcinogen with experimental
tumorigenic data. Used in disinfectants,
solvents, pharmaceuticals, plasticizers, and
wetting agents. See also other xylenol
entries. | | 純化方法 | Crystallise 2,5-xylenol from EtOH/ether. [Beilstein 6 IV 3164.] |
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