21900-23-2

• 常用中文名：3,4-二甲基苯-1-羰酰氯
• 常用英文名：3,4-dimethylbenzene-1-carbonyl chloride
• CAS号：21900-23-2
• 分子式：C₉H₉ClO
• 分子量：168.62000
• 发布时间：2018-04-03 08:00:00
• 更新时间：2024-01-29 19:47:16

名称

• 中文名: 3,4-二甲基苯-1-羰酰氯
• 英文名: 3,4-dimethylbenzoyl chloride
• 中文别名: 3,4-二甲苯基-1-羰酰氯
• 英文别名: 3,4-dimethylbenzene-1-carbonyl chloride; 3,4-Dimethylbenzoylchloride; 4-(Chlorocarbonyl)-o-xylene; 4-(Chloroformyl)-o-xylene; 3,4-Dimethyl-benzoylchlorid; 3,4-dimethylbenzoic acid chloride; MFCD00045219

物化性质

• 密度: 1.136g/cm3
• 沸点: 257.4ºC at 760mmHg
• 分子式: C₉H₉ClO
• 分子量: 168.62000
• 闪点: 112.4ºC
• 精确质量: 168.03400
• PSA: 17.07000
• LogP: 2.68240
• 蒸汽压: 0.0145mmHg at 25°C
• 折射率: 1.534
• 储存条件: Store under Nitrogen

MSDS

Name: 3 4-Dimethylbenzene-1-carbonyl chloride 97% Material Safety Data Sheet Synonym: 3,4-Dimethylbenzoyl chlorid CAS: 21900-23-2 Section 1 - Chemical Product MSDS Name:3 4-Dimethylbenzene-1-carbonyl chloride 97% Material Safety Data Sheet Synonym:3,4-Dimethylbenzoyl chlorid Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 21900-23-2 3,4-Dimethylbenzene-1-carbonyl chlorid 97% unlisted Hazard Symbols: C Risk Phrases: 34 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Causes burns.Moisture sensitive. Potential Health Effects Eye: Causes eye burns. Skin: Causes skin burns. Ingestion: Causes gastrointestinal tract burns. Inhalation: Causes chemical burns to the respiratory tract. Chronic: Not available. Section 4 - FIRST AID MEASURES Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Ingestion: Do not induce vomiting. Get medical aid immediately. Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Notes to Physician: Treat symptomatically and supportively. Section 5 - FIRE FIGHTING MEASURES General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing Media: Use foam, dry chemical, or carbon dioxide. Section 6 - ACCIDENTAL RELEASE MEASURES General Information: Use proper personal protective equipment as indicated in Section 8. Spills/Leaks: Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Section 7 - HANDLING and STORAGE Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood. Storage: Store in a cool, dry place. Store in a tightly closed container. Corrosives area. Store under nitrogen. Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 21900-23-2: Personal Protective Equipment Eyes: Not available. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Liquid Color: colorless Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 126 - 128 deg C @15mmHg Freezing/Melting Point: Not available. Autoignition Temperature: Not available. Flash Point: Not available. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Specific Gravity/Density: Molecular Formula: C9H9ClO Molecular Weight: 169 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Not available. Conditions to Avoid: Incompatible materials, exposure to moist air or water. Incompatibilities with Other Materials: Oxidizing agents, reducing agents, alcohols, amines. Hazardous Decomposition Products: Hydrogen chloride, chlorine, carbon monoxide, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 21900-23-2 unlisted. LD50/LC50: Not available. Carcinogenicity: 3,4-Dimethylbenzene-1-carbonyl chloride - Not listed by ACGIH, IARC, or NTP. Section 12 - ECOLOGICAL INFORMATION Section 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations. Section 14 - TRANSPORT INFORMATION IATA Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.* Hazard Class: 8 UN Number: 3265 Packing Group: III IMO Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. Hazard Class: 8 UN Number: 3265 Packing Group: III RID/ADR Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. Hazard Class: 8 UN Number: 3265 Packing group: III Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: C Risk Phrases: R 34 Causes burns. Safety Phrases: S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 36/37/39 Wear suitable protective clothing, gloves and eye/face protection. S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). WGK (Water Danger/Protection) CAS# 21900-23-2: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 21900-23-2 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 21900-23-2 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A

安全

• 危害码 (欧洲): C: Corrosive;
• 风险声明 (欧洲): R34
• 安全声明 (欧洲): 26-36/37/39
• 危险品运输编码: UN 3265
• 海关编码: 2916399090

合成路线

619-04-5 ~91% 21900-23-2

文献：Klaerner, Frank-Gerrit; Madenci, Suereyya; Kuchenbrandt, Mireia Campana; Blaeser, Dieter; Boese, Roland; Fukuhara, Gaku; Inoue, Yoshihisa European Journal of Organic Chemistry, 2012 , # 18 p. 3385 - 3395

95-47-6 ~% 21900-23-2

文献：Journal of the Chemical Society, , p. 2323,2331 Journal of the Society of Chemical Industry, London, , vol. 53, p. 71 T

583-71-1 ~% 21900-23-2

文献：Recueil des Travaux Chimiques des Pays-Bas, , vol. 79, p. 1211 - 1222

95-64-7 ~% 21900-23-2

文献：Recueil des Travaux Chimiques des Pays-Bas, , vol. 79, p. 1211 - 1222

79-37-8 95-47-6 ~% 134462-68-3 21900-23-2

文献：Recueil des Travaux Chimiques des Pays-Bas, , vol. 42, p. 412

上下游产品

上游产品  5
619-04-5 95-47-6 583-71-1 95-64-7
79-37-8
下游产品  10
5973-71-7 5580-33-6 24964-78-1 3637-01-2
3400-36-0 17283-16-8 2571-39-3 120-34-3
15247-68-4 27831-13-6

海关

海关编码	2916399090
中文概述	2916399090 其他芳香一元羧酸. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0%
申报要素	品名, 成分含量, 用途, 丙烯酸、丙烯酸盐或酯应报明包装
Summary	2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%