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p-クレゾール

p-クレゾール 化学構造式
106-44-5
CAS番号.
106-44-5
化学名:
p-クレゾール
别名:
p-クレゾール;p-クレシル酸;p-ヒドロキシトルエン;p-トルオール;4-メチルフェノール;p-クレソール;p-トリルアルコール;p-メチルフェノール;p-クレゾル;pクレゾール;pクレゾル;P‐クレゾール;P-クレゾール PURISS. P.A.,≥99.0% (GC);P-クレゾール 5000ΜG/ML IN METHANOL;P-クレゾール標準品;P-クレゾール STANDARD;P-クレゾール 100 UG/ML IN METHANOL;4-メチルフェノール 溶液;p - クレゾール;p-クレゾール Standard, 100 µg/mL in Dichloromethane
英語化学名:
p-Cresol
英語别名:
1PO;p-Toluol;p-Kresol;P-CRESOL;4-Cresol;FEMA 2337;Paracresol;KRESOL-PARA;4-Cresol99%;para-cresol
CBNumber:
CB5453502
化学式:
C7H8O
分子量:
108.14
MOL File:
106-44-5.mol

p-クレゾール 物理性質

融点 :
32-34 °C(lit.)
沸点 :
202 °C(lit.)
比重(密度) :
1.034 g/mL at 25 °C(lit.)
蒸気密度:
3.72 (vs air)
蒸気圧:
1 mm Hg ( 20 °C)
屈折率 :
nD20 1.5395
FEMA :
2337 | P-CRESOL
闪点 :
193 °F
貯蔵温度 :
Store below +30°C.
溶解性:
20g/l
酸解離定数(Pka):
10.17(at 25℃)
外見 :
Crystalline Solid or Liquid
比重:
1.0341 (20/4℃)
色:
Colorless to light yellow, may darken on exposure to light
爆発限界(explosive limit):
1%(V)
臭気閾値(Odor Threshold):
0.000054ppm
水溶解度 :
20 g/L (20 ºC)
Sensitive :
Light Sensitive
Merck :
14,2579
JECFA Number:
693
BRN :
1305151
Henry's Law Constant:
6.17 at 20.00 °C, 9.31 at 25.00 °C (dynamic equilibrium system-GC, Feigenbrugel et al., 2004a)
暴露限界値:
NIOSH REL: TWA 2.3 ppm (10 mg/m3), IDLH 250 ppm; OSHA PEL: TWA 5 ppm (22 mg/m3); ACGIH TLV: TWA for all isomers 5 ppm (adopted).
安定性::
Stable. Combustible. Incompatible with strong oxidizing agents. Air and light-sensitive. Hygroscopic.
CAS データベース:
106-44-5(CAS DataBase Reference)
NISTの化学物質情報:
Phenol, 4-methyl-(106-44-5)
EPAの化学物質情報:
p-Cresol (106-44-5)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  T,Xi
Rフレーズ  24/25-34-39/23/24/25-23/24/25
Sフレーズ  36/37/39-45-36/37
RIDADR  UN 3455 6.1/PG 2
WGK Germany  1
RTECS 番号 GO6475000
8
自然発火温度 555 °C
Hazard Note  Irritant
TSCA  Yes
国連危険物分類  6.1
容器等級  II
HSコード  29071200
有毒物質データの 106-44-5(Hazardous Substances Data)
毒性 LD50 orally in rats: 1.8 g/kg (Deichmann, Witherup)
化審法 (3)-499, (4)-57 優先評価化学物質
安衛法 有機則 第二種有機溶剤等
PRTR法 第一種指定化学物質
毒劇物取締法 劇物
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H301 飲み込むと有毒 急性毒性、経口 3 危険 P264, P270, P301+P310, P321, P330,P405, P501
H311 皮膚に接触すると有毒 急性毒性、経皮 3 危険 P280, P302+P352, P312, P322, P361,P363, P405, P501
H314 重篤な皮膚の薬傷?眼の損傷 皮膚腐食性/刺激性 1A, B, C 危険 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
H331 吸入すると有毒 急性毒性、吸入 3 危険 P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H351 発がんのおそれの疑い 発がん性 2 警告 P201, P202, P281, P308+P313, P405,P501
H370 臓器の障害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P307+P311, P321,P405, P501
H372 長期にわたる、または反復暴露により臓器の障 害 特定標的臓器有害性、単回暴露 1 危険 P260, P264, P270, P314, P501
H373 長期にわたる、または反復暴露により臓器の障 害のおそれ 特定標的臓器有害性、単回暴露 2 警告 P260, P314, P501
H401 水生生物に毒性 水生環境有害性、急性毒性 2 P273, P501
H412 長期的影響により水生生物に有害 水生環境有害性、慢性毒性 3 P273, P501
注意書き
P201 使用前に取扱説明書を入手すること。
P202 全ての安全注意を読み理解するまで取り扱わないこ と。
P264 取扱い後は皮膚をよく洗うこと。
P264 取扱い後は手や顔をよく洗うこと。
P270 この製品を使用する時に、飲食または喫煙をしないこ と。
P273 環境への放出を避けること。
P280 保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
P307+P311 暴露した場合:医師に連絡すること。
P405 施錠して保管すること。
P501 内容物/容器を...に廃棄すること。

p-クレゾール 価格 もっと(44)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
富士フイルム和光純薬株式会社(wako) W01ACSAPP-9-052 p-クレゾール Standard
p-Cresol Standard, 100 ug/mL in Dichloromethane
106-44-5 1mL ¥4400 2021-03-23 購入
富士フイルム和光純薬株式会社(wako) W01ACSAPP-9-052-20X p-クレゾール Standard
p-Cresol Standard, 2.0 mg/mL in Dichloromethane
106-44-5 1mL ¥7400 2021-03-23 購入
東京化成工業 C0400 p-クレゾール >99.0%(GC)
p-Cresol >99.0%(GC)
106-44-5 25g ¥1600 2021-03-23 購入
東京化成工業 C0400 p-クレゾール >99.0%(GC)
p-Cresol >99.0%(GC)
106-44-5 500g ¥3300 2021-03-23 購入
関東化学株式会社(KANTO) 07455-00 p‐クレゾール >99.0%(GC)
p‐Cresol >99.0%(GC)
106-44-5 500mL ¥3100 2021-03-23 購入

p-クレゾール MSDS


4-Methylphenol

p-クレゾール 化学特性,用途語,生産方法

外観

白色~うすい黄色粉末~塊

溶解性

水に可溶 (2.5g/100ml水, 50℃), 水酸化アルカリ水溶液、通常の有機溶媒に易溶。エタノール(99.5)及びジエチルエーテルに極めて溶けやすく、水にやや溶けにくく、水酸化ナトリウム溶液に溶ける。

用途

防腐剤、消毒剤

用途

水質試験用

用途

有機合成(合成樹脂、可塑剤等)原料、消毒剤、防腐剤。

使用上の注意

不活性ガス封入徐々に着色し、薄い紅色又は褐色となる。

化学的特性

Colorless to pink crystals with a phenolic odor. Odor threshold concentration in water is 55 ppb (Buttery et al., 1988). An experimentally determined odor threshold concentration of 1 ppbv was reported by Leonardos et al. (1969) which exceeds the odor threshold concentration of 0.054 ppbv reported by Nagata and Takeuchi (1990).

化学的特性

Cresol is a mixture of the three isomeric cresols, o-, m-, and p-cresol. Cresols are slightly soluble in water. m-Isomer: Colorless or yellow liquid with characteristic odor.

化学的特性

p-Cresol has a characteristics phenol-like odor.

物理的性質

Colorless to pink crystals with a phenolic odor. Odor threshold concentration in water is 55 ppb (Buttery et al., 1988). An experimentally determined odor threshold concentration of 1 ppbv was reported by Leonardos et al. (1969) which exceeds the odor threshold concentration of 0.054 ppbv reported by Nagata and Takeuchi (1990).

天然物の起源

Has been found in a score of essential oils including ylang ylang and oil of jasmine (Gildemeister & Hoffman, 1966).

使用

For making synthetic resins; in disinfectants and fumigants; as industrial solvent; m-cresol in photographic developers, explosives.

使用

Intermediates of Liquid Crystals

使用

p-Cresol is used in the synthesis of Bupranolol (B689650), a non-selective beta blocker.

定義

ChEBI: A cresol that consists of toluene substituted by a hydroxy group at position 4. It is a metabolite of aromatic amino acid metabolism produced by intestinal microflora in humans and animals.

製造方法

It can be prepared by fractional distillation of coal tar where it occurs together with the ortho- and para- isomers.

調製方法

The cresols (cresylic acids) are methyl phenols and generally appear as a mixture of isomers. p-Cresol is a 4-methyl derivative of phenol and is prepared from m-toluic acid or obtained from coal tar or petroleum. Crude cresol is obtained by distilling “gray phenic acid” at a temperature of ~180–201°C. p-Cresol may be separated from the crude or purified mixture by repeated fractional distillation in vacuo. It can also be prepared synthetically by diazotization of the specific toluene or by fusion of the corresponding toluenesulfonic acid with sodium hydroxide.

Aroma threshold values

Detection: 55 to 100 ppb.

Synthesis Reference(s)

Journal of the American Chemical Society, 81, p. 4230, 1959 DOI: 10.1021/ja01525a028
Chemical and Pharmaceutical Bulletin, 31, p. 749, 1983 DOI: 10.1248/cpb.31.749
Tetrahedron Letters, 21, p. 3731, 1980 DOI: 10.1016/0040-4039(80)80164-X

一般的な説明

Colorless solid with a tar like odor. Sinks and mixes slowly with water.

空気と水の反応

Insoluble in water.

反応プロフィール

p-Cresol is sensitive to heat. p-Cresol is also sensitive to light. p-Cresol is incompatible with strong oxidizers and strong alkalis. p-Cresol will attack some forms of plastics, coatings and rubber.

危険性

Questionable carcinogen.

健康ハザード

INHALATION: Irritation of nose or throat. EYES: Intense irritation and pain, swelling of conjunctiva and corneal damage may occur. SKIN: Intense burning, loss of feeling, white discoloration and softening. Gangrene may occur. INGESTION: Burning sensation in mouth and esophagus. Vomiting may result. Absorption by all routes may cause muscular weakness, gastroenteric disturbance, severe depression and collapse. Effects are primarily on central nervous system, edema of lungs, injury of spleen and pancreas may occur.

安全性プロファイル

Poison by ingestion, skin contact, subcutaneous, intravenous, and intraperitoneal routes. A severe skin and eye irritant. Questionable carcinogen with experimental neoplastigenic data by itself and with 7,12-dirnethyl benz(a)anthracene. Combustible when exposed to heat or flame. Moderately explosive in the form ofvapor when exposed to heat or flame. To fight fire, use CO2, dry chemical, alcohol foam. See also other cresol entries and PHENOL.

職業ばく露

Cresol is used as a disinfectant and fumigant; as an ore flotation agent, and as an intermediate in the manufacture of chemicals, dyes, plastics, and antioxidants. A mixture of isomers is generally used; the concentrations of the components are determined by the source of the cresol.

Carcinogenicity

o-Cresol has been induced a few papillomas but no carcinomas in tumor studies.

Source

As 3+4-methylphenol, detected in distilled water-soluble fractions of 87 octane gasoline (6.03 mg/L), 94 octane gasoline (0.60 mg/L), Gasohol (1.76 mg/L), No. 2 fuel oil (1.84 mg/L), jet fuel A (0.43 mg/L), diesel fuel (1.318 mg/L), and military jet fuel JP-4 (0.92 mg/L) (Potter, 1996).
A high-temperature coal tar contained 4-methylphenol at an average concentration of 0.27 wt % (McNeil, 1983).
Occurs naturally in brown juniper, Spanish cedar, peppermint (2 to 20 ppb), tarragon, asparagus shoots, ylang-ylang, jasmine, tea leaves, coffee beans, Japanese privet, white mulberries, raspberries, vanilla, blueberries, sour cherries, anise, and tamarind (Duke, 1992).
A liquid swine manure sample collected from a waste storage basin contained 4-methylphenol at a concentration of 4.9 mg/L (Zahn et al., 1997).

環境運命予測

Biological. Protocatechuic acid (3,4-dihydroxybenzoic acid) is the central metabolite in the bacterial degradation of 4-methylphenol. Intermediate by-products include 4-hydroxybenzyl alcohol, 4-hydroxybenzaldehyde, and 4-hydroxybenzoic acid. In addition, 4-methylphenol may undergo hydroxylation to form 4-methylcatechol (Chapman, 1972). Chloroperoxidase, a fungal enzyme isolated from Caldariomyces fumago, reacted with 4-methylphenol forming 4-methyl-2- chlorophenol (Wannstedt et al., 1990). Under methanogenic conditions, inocula from a municipal sewage treatment plant digester degraded 4-methylphenol to phenol prior to being mineralized to carbon dioxide and methane (Young and Rivera, 1985).
Photolytic. Photooxidation products reported include 2,2′-dihydroxy-4,4′-dimethylbiphenyl, 2- hydroxy-3,4′-dimethylbiphenyl ether, and 4-methylcatechol (Smith et al., 1978). Anticipated products from the reaction of 4-methylphenol with ozone or OH radicals in the atmosphere are hydroxynitrotoluene and ring cleavage compounds (Cupitt, 1980). Absorbs UV light at a maximum wavelength of 278 nm (Dohnal and Fenclová, 1995).
Chemical/Physical. Kanno et al. (1982) studied the aqueous reaction of 4-methylphenol and other substituted aromatic hydrocarbons (toluidine, 1-naphthylamine, phenol, 2- and 3- methylphenol, pyrocatechol, resorcinol, hydroquinone, and 1-naphthol) with hypochlorous acid in the presence of ammonium ion. They reported that the aromatic ring was not chlorinated as expected but was cleaved by chloramine forming cyanogen chloride. The amount of cyanogen chloride formed was increased as the pH was lowered (Kanno et al., 1982).

代謝

p-Cresol is oxidized at the methyl group in both dogs and rabbits to yield ρ-hydroxybenzoic acid. In the rabbit up to 10% of oral doses of 0.25-0.5 g is excreted as free and conjugated p-hydroxybenzoic acid (Williams, 1959).

輸送方法

UN2076 Cresols, liquid, Hazard class: 6.1; Labels: 6.1-Poisonous materials, 8-Corrosive material. UN3455 Cresols, solid, Hazard class: 6.1; Labels: 6.1- Poisonous materials, 8-Corrosive material.

純化方法

It can be separated from m-cresol by fractional crystalisation of its melt. Purify it by distillation, by precipitation from *benzene solution with pet ether, and via its benzoate, as for phenol. Dry it under vacuum over P2O5. It has also been crystallised from pet ether (b 40-60o) and by conversion to sodium p-cresoxyacetate which, after crystallisation from water is decomposed by heating with HCl in an autoclave [Savard Ann Chim (Paris) 11 287 1929]. The 3,5-dinitrobenzoate (prepared with 3,5-dinitrobenzoyl chloride in dry pyridine, and recrystallised from EtOH or aqueous Me2CO) has m 189o. [Beilstein 6 II 2093.]

不和合性

Vapors may form explosive mixture with air. Incompatible with strong acids; oxidizers, alkalies, aliphatic amines; amides, chlorosulfonic acid; oleum. Decomposes on heating, producing strong acids and bases, causing fire and explosion hazard. Liquid attacks some plastics and rubber. Attacks many metals.

廃棄物の処理

Wastewaters may be subjected to biological treatment. Concentrations may be further reduced by ozone treatment. High concentration wastes may be destroyed in special waste incinerators.

p-クレゾール 上流と下流の製品情報

原材料

準備製品


p-クレゾール 生産企業

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106-44-5(p-クレゾール)キーワード:


  • 106-44-5
  • KRESOL-PARA
  • phenol,-methyl-
  • p-Kresol
  • p-Methyiphenol
  • p-Methylhydroxybenzene
  • p-Oxytoluene
  • p-Toluol
  • p-Tolyl alcohol
  • p-tolylalcohol
  • Rcra waste number U052
  • rcrawastenumberu052
  • P-CRESOL 1% IN ETHANOL, NATURAL
  • p-CRESOL pure
  • 4-Methylphenol, p-Cresol solution
  • 4-Methylphenol, p-Cresol
  • 1PO
  • p-methyl phenol,p-cresol
  • 4-Hydroxy-1-methylbenzene
  • p-Cresol, 99+%, extra pure
  • p-Cresol, extra pure
  • p-Cresol,99+%,pure
  • p-Cresol, synthesis grade
  • 4-Methylphenol 5g [106-44-5]
  • p-Cresol 5g [106-44-5]
  • 4-Methylphenol,4-Methylphenol, p-Cresol,
  • Copper Selenate Pentahydate
  • p-Cresol, 4-Hydroxytoluene
  • p-Cresol, extra pure, 99+% 500GR
  • p-Cresol, pure, 99+% 500GR
  • p-Cresol, pure, 99+% 5GR
  • p-クレゾール
  • p-クレシル酸
  • p-ヒドロキシトルエン
  • p-トルオール
  • 4-メチルフェノール
  • p-クレソール
  • p-トリルアルコール
  • p-メチルフェノール
  • p-クレゾル
  • pクレゾール
  • pクレゾル
  • P‐クレゾール
  • P-クレゾール PURISS. P.A.,≥99.0% (GC)
  • P-クレゾール 5000ΜG/ML IN METHANOL
  • P-クレゾール標準品
  • P-クレゾール STANDARD
  • P-クレゾール 100 UG/ML IN METHANOL
  • 4-メチルフェノール 溶液
  • p - クレゾール
  • p-クレゾール Standard, 100 µg/mL in Dichloromethane
  • p-クレゾール Standard, 2.0 mg/mL in Dichloromethane
  • p-クレゾール Standard, 5.0 mg/mL in MeOH
  • p-クレゾール, 99%
  • フェノール (液晶原料)
  • 機能性材料
  • 液晶原料
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