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化工社化工社 化学情報印刷レポート · 研究参考用
HCID 7680作成日:2026年10月26日

2-フェニルアセトアミド

2-フェニルアセトアミド · α-フェニルアセトアミド · ベンゼンアセトアミド · α-トルアミド · フェニルアセトアミド · フェニル酢酸アミド · Benzeneacetamide · PHENYLACETAMIDE

https://huagongshe.com/ja/chemical/7680

2-フェニルアセトアミド の分子構造式

識別子と物理属性

CAS No.103-81-1
分子式C8H9NO
平均分子量135.16 g/mol
単同位体質量135.06841391 g/mol
SMILESNC(=O)Cc1ccccc1
InChIKeyLSBDFXRDZJMBSC-UHFFFAOYSA-N
PubChem CID7680
ChEMBLCHEMBL347645
ChEBICHEBI:16562
EC No.203-147-0
DTXSIDDTXSID1059282
現地名2-フェニルアセトアミド

化学・物理的性質

XLogP0.5
極性表面積43.1
水素結合供与体数1
水素結合受容体数1
回転可能結合数2
重原子数10
形式電荷0
複雑度116
物質分類Nitrogen Compounds -> Other Aromatics (Nitrogen)
SpringerMaterials PropertiesBoiling point
蒸気圧0.000344 [mmHg]
Physical DescriptionSolid[Merck Index]
融点156 °C
沸点280-290 °C (dec.)
密度1.1031 (rough estimate)
屈折率1.5589 (estimate)
貯蔵条件Refrigerator
溶解度メタノールに可溶。
pKa(酸解離定数)16.21±0.40(Predicted)
外観・状態個体
色プレートまたはリーフレット
Merck14,7266
InChIInChI=1S/C8H9NO/c9-8(10)6-7-4-2-1-3-5-7/h1-5H,6H2,(H2,9,10)
InChIKeyLSBDFXRDZJMBSC-UHFFFAOYSA-N
SMILESC1(CC(N)=O)=CC=CC=C1
CAS データベース103-81-1(CAS DataBase Reference)
NISTの化学物質情報Benzeneacetamide(103-81-1)
EPAの化学物質情報Benzeneacetamide (103-81-1)

化学的特性

2-Phenylacetamide, also known as alpha-toluamide or benzeneacetamide, belongs to the class of organic compounds known as phenylacetamides. These are amide derivatives of phenylacetic acids. Pure crystals are plate shaped and colorless to white. soluble in hot water, ethanol, slightly soluble in cold water, ether and benzene.

安全性と法規制

GHS 分類WarningH302 (97.7%): Harmful if swallowed [Warning Acute toxicity, oral]P264, P264+P265, P270, P280, P301+P317, P305+P351+P338, P330, P337+P317, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 44 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
有害性の概要An eye irritantA possible sensitizerHarmful by ingestion[Aldrich MSDS] See 2-Chloro-N-phenylacetamide.
Hazard Classes and CategoriesAcute Tox. 4 (97.7%)
TSCA 収載状態TSCA listed
RTECS 番号AC7705000
毒性LD50 ipr-mus: 430 mg/kg PCJOAU 10,579,76
税関コード29242990
危険文句(R)22-36
化審法(9)-1200
危険表示Xi
安全措置(S)22-24/25-60-36-26
危険等級IRRITANT

用途

使用

In agriculture, 2-Phenylacetamid can be used in the production of many important intermediates of pesticides, such as carbamine. In the field of dyes: it can react with some monomers with color to produce some important raw materials for blue and purple dyes. In the field of fragrances, it can be used as an important raw material for the synthesis of certain spices and flavors. 2-Phenylacetamide can also be used in the synthesis of organometallic, organic peroxide, organic peroxide ester, and other compounds, and can be used as a crosslinking agent for polymers, a film forming agent for coatings, a plasticizer for plastics, etc.

使用

2-Phenylacetamide is used as a pharmaceutical intermediate in the production of penicillin G and phenobarbital, etc. It is also used in organic synthesis.

製法・合成法

製造方法

Synthesis of 2-phenylacetamide: Add concentrated hydrochloric acid to phenylacetonitrile, stir to dissolve, and react at 50°C for half an hour. Then slowly add water under cooling to separate out crystals, filter after cooling, wash with ice water to obtain crude product. The crude product was washed with sodium carbonate solution, then washed with ice water, and dried to obtain purer phenylacetamide.

純化方法

Crystallise the acetamide repeatedly from absolute EtOH, EtOAc (m 160-161o) or H2O (m 159-160o). Dry it in vacuo over P2O5. [Beilstein 9 H 347, 9 III 2193, 9 IV 1632.]