26172-55-4

• 常用中文名：异噻唑啉酮
• 常用英文名：5-Chloro-2-methyl-4-isothiazolin-3-one
• CAS号：26172-55-4
• 分子式：C₄H₄ClNOS
• 分子量：149.599
• 相关类别： 化学农药原药 杀菌剂 其他杀菌剂
• 发布时间：2018-02-07 08:00:00
• 更新时间：2026-06-30 14:28:05

• 1.用于处理工业循环水，起杀菌灭藻作用.是一种广普的杀菌防腐剂，能有效杀灭藻类、 细菌和真菌。该活性单剂可广泛用于工业冷却水、油田回罐水、造纸行业、管道、涂料、油漆、橡胶以及化妆品、感光胶片及洗涤用品等工业。有效用量少，无毒无污染，极易混合在各类配方中， PH 使用范围广，稀释使用浓度后，很容易被生物降解为无毒无污染物质

  2.异噻唑啉酮是一种广谱、高效、低毒、非氧化性杀菌剂，运用于油田、造纸、农药、切削油、皮革、油墨、染料、制革等行业。异噻唑啉酮2类产品作黏泥剥离剂时，投加浓度150～300mg/L；作杀菌剂时，每隔3～7天投加一次，投加剂量80～100mg/L。能与氯气等氧化型杀菌剂同时使用，不能用于含硫化物的冷却水系统。异噻唑啉酮与季铵盐复合使用效果较佳。异噻唑啉酮做工业杀菌防霉剂使用时，一般浓度为0.05%～0.4%。

  3.能很好地穿过黏泥表层而杀灭黏泥中的菌藻，能阻止冷却水系统的黏泥生成。可广泛用于造纸厂白水、冷却水、油田注水、金属加工油、乳胶、纤维及涂料等防霉。

名称

• 中文名: 5-氯-2-甲基-4-异噻唑啉-3-酮
• 英文名: chloromethylisothiazolinone
• 中文别名: 乙腈中甲基氯异噻唑啉酮; 5-氯-2-甲基异噻唑啉-3-酮; 5-氯-2-甲基-4-异噻唑啉-3-酮 5-CHLORO-2-METHYL-4-ISOTHIAZOLIN-3-ONE; 2-甲基-4-异噻唑啉酮; 甲基氯异噻唑啉酮溶液, 100PPM; 5-氯-2-甲基-异噻唑酮-3; BF350标记的多纤毛素蛋白抗体; 甲基氯异噻唑啉酮(5-氯-2-甲基-4-异噻唑啉-3-酮)标准品; 卡松(甲基氯异噻唑啉酮); BF555标记的多纤毛素蛋白抗体; 5-氯-2-甲基-4-异噻唑啉-3-酮/2-甲基-4-异噻唑啉-3-酮 (CMIT/MIT- 1 4)二价; PE标记的多纤毛素蛋白抗体; APC-CY7标记的多纤毛素蛋白抗体; 5-氯-2-甲基-4-异噻唑啉-3-酮/2-甲基-4-异噻唑啉-3-酮(CMIT/MIT); 5-氯-2-甲基-异噻唑啉-3-酮; 5-氯-2-甲基-3(2H)异噻唑酮、2-甲基3(2H)异噻唑酮混合物; 卡松 IXE; 甲基氯异塞唑晽酮; 5-氯-2-甲基-4-异噻唑啉-3-酮(CMIT); 异噻唑啉酮 钠盐; 标准品/乙腈中甲基氯异噻唑啉酮/效期大于3个月正常供货; BF647标记的多纤毛素蛋白抗体; PER-CY7标记的多纤毛素蛋白抗体; 甲基氯异噻唑啉酮检测标准品; 5-氯-2-甲基-4-异噻唑啉-3-酮(CMIT)标准品; BF750标记的多纤毛素蛋白抗体; 5-氯-2-甲基-3(2H)-异噻唑酮; 卡松; 5-氯-2-甲基-4-异噻唑啉-3-酮 溶液; 复合型日化杀菌剂; 甲醇中甲基氯异噻唑啉酮(5-氯-2-甲基-2H-异噻唑-3-酮)溶液标准物质; 异噻唑啉酮 26-4; 淀粉防腐剂; 5-氯-2-甲基-4-异噻唑啉-3-酮 (水溶液); PE-CY7标记的多纤毛素蛋白抗体; 异噻唑啉酮混合物; 甲基氯异塞唑晽酮/5-氯-2-甲基异噻唑啉-3-酮; 5-氯-2-甲基-4-异噻唑啉-3-酮(CMCI); 水晶泥起泡胶杀菌剂; 通用杀菌剂; 卡松 异噻唑啉酮 5-氯-2-甲基-4-异噻唑啉-3-酮; 氯甲基异噻唑啉酮; 植物防腐剂的混合物; 乙腈中甲基氯异噻唑啉酮溶液,100ΜG/ML; CY5.5标记的多纤毛素蛋白抗体; 異塞唑酮; 超轻粘土杀菌剂; 异噻唑啉酮 CMI/MI; 5-氯-2-甲基-3-异噻唑啉酮; PE-CY5标记的多纤毛素蛋白抗体; 5-氯-2-甲基异噻唑-3(2H)-酮; 凯松/卡松; 5-氯-2-甲基-2H-异噻唑-3-酮
• 英文别名: 5-CHLORO-2-METHYL-3(2H)-ISOTHIAZOLE; 5-CHLORO-2-METHYLISOTHIAZOLINONE; CHLOROMETHYLISOTHIAZOLINE; EINECS 247-500-7; 2-METHYL-5-CHLOROISOTHIAZOLIN-3-ONE; 5-Chloro-2-methyl-1,2-thiazol-3(2H)-one; 5-CHLORO-2-METHYL-3(2H)-ISOTHIAZOLONE MIXED WITH 2-METHYL-3(2H)ISOTHIAZOLONE; 5-cloro-2-methyl-4-isothiazolin-3-one/2-methyl-2h-isothiazol-3-one; KATHON886MW; Isothiazolinones Solution,100ppm; Danisol-K; 5-Chloro-2-Methyl-3(2H)-IsothiazoneMixedWith2-Methyl-3(2H)-Isothiazolone; 2-METHYL-5-CHLORO-4-ISO-THIAZOLINE-3-ONE; 5-CHLORO-2-METHYL-ISOTHIAZOLIN-3(2H)-ONE; CMIT (5 chloro 2 Methyl 2H isothiazol-3-one; 5-Chloro-2-methyl-Isothiazolin-3-one/ 2-Methyl-Isothiazolin-3-one(CMIT/MIT); 5-CHLORO-2-METHYL-2,3-DIHYDROISOTHIAZOL-3-ONE; METHYL/CHLOROMETHYLISOTHIAZOLINONE; 5-CHLORO-2-METHYLISOTHIAZOLIN-3-ONE; 5-chloro-2-methylisothiazol-3(2h)-one; KATHONLX; 5-Chloro-2-methyl-4-isothiazolinone; 5-chloro-2-methyl-4-isothiazolin-3-on; CMIT/MIT-14; 5-Chloro-2-Methyl-3(2H)-Isothiazone; Kathon.cmit/mit; KATHON886F; Isothiazolinones(CMI/MI); 5-chloro-2-methyl-isothiazolylthione-3; CMIT/MIT; 5-CHLORO-2-METHYL-4-ISOTHIAZOLIN-3-ONE (CMI); ANTI-IDAS(N-TERMINAL) antibody produced in rabbit; Methylchloroisothiazolone; CHLORMETHYLISOTHIAZOLINONE; Methychloroisothiazolinone/Methylisothiazolinone; METHYL(CHLORO)ISOTHIAZOLINONEMIXTURE; 5-CHLORIDE-2-METHYL-4-ISOTHIAZOLINE-3-KETONE; Protein Idas; 5-Chloro-2-Methyl-4-isothiazolin-3-one, in water; Chloromethylisothiazolinone; CMIT/MIT MIXTURE; 5-CHLORO-2-METHYL-4-ISOTHIAZOLIN-3-ONE (CMIT); 5-CHLORO-2-METHYL-4-ISOTHIAZOLIN-3-ONE (ACTIVE INEDIENT , CMI/MI ); kathoncg5243; Methylchloroisothiazolinone; 5-Chloro-2-methyl-3-isothiazolone - Active Inedient , CMI/MI; KATHONFP; MFCD00792550; Chloromethylisothiazolone; METHYLCHLOROISOTHIAZOLINONE/METHYLISOTHIAZOLINONE; 5-Chloro-2-methyl-3-isothiazolone; 4-Isothiazolin-3-one,5-chloro-2-methyl; Multicilin; 3(2H)-Isothiazolone, 5-chloro-2-methyl-, mixt. with 2-methyl-3(2H)-isothiazolone; CMIT/MIT-2.5 CG; Isothiazolinones; 3(2H)-Isothiazolone, 5-chloro-2-methyl; 5-chloro-2-methyl-3(2h)-isothiazolon; Isothiazolinone; Methyl chloroisothiazalinone

物化性质

• 密度: 1.5±0.1 g/cm3
• 沸点: 200.2±50.0 °C at 760 mmHg
• 熔点: 42-45?C
• 分子式: C₄H₄ClNOS
• 分子量: 149.599
• 闪点: 74.9±30.1 °C
• 精确质量: 148.970215
• PSA: 50.24000
• LogP: 0.24
• 外观性状: 透明至黄色液体
• 蒸汽压: 0.3±0.4 mmHg at 25°C
• 折射率: 1.628
• 储存条件:

  库房低温, 通风, 干燥

• 稳定性:

  1.异噻唑啉酮是通过断开细菌和藻类蛋白质的键而起杀生作用的。异噻唑啉酮与微生物接触后，能迅速地不可逆地抑制其生长，从而导致微生物细胞的死亡，故对常见细菌、真菌、藻类等具有很强的抑制和杀灭作用。杀生效率高，降解性好，具有不产生残留、操作安全、配伍性好、稳定性强、使用成本低等特点。能与氯及大多数阴、阳离子及非离子表面活性剂相混溶。高剂量时，异噻唑啉酮对生物黏泥剥离有显著果。

• 分子结构:

  1、 摩尔折射率：35.04

  2、 摩尔体积（cm³/mol）：98.7

  3、 等张比容（90.2K）：267.2

  4、 表面张力（dyne/cm）：53.6

  5、 极化率（10-24cm3）：13.89

• 计算化学:

  1.疏水参数计算参考值（XlogP）:0.9

  2.氢键供体数量:0

  3.氢键受体数量:2

  4.可旋转化学键数量:0

  5.互变异构体数量:无

  6.拓扑分子极性表面积45.6

  7.重原子数量:8

  8.表面电荷:0

  9.复杂度:156

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

• 更多:

  1.性状：白色固体。

  2.溶解性：能与氯及大多数阴、阳离子及非离子表面活性剂相混溶。

MSDS

Material Safety Data Sheet Section1. Identification of the substance Product Name: 5-Chloro-2-methyl-4-isothiazolin-3-one, tech grade, ¿14% in water. CMI/MI ¿2.0 Synonyms:CMI Section2. Hazards identification Harmful by inhalation, in contact with skin, and if swallowed. Section3. Composition/information on ingredients. Ingredient name:5-Chloro-2-methyl-4-isothiazolin-3-one, tech grade, ¿14% in water. CMI/MI ¿2.0 CAS number:26172-55-4 Section4. First aid measures Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing contaminated clothing and shoes. If irritation persists, seek medical attention. Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical attention. Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention. Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention. Section5. Fire fighting measures In the event of a fire involving this material, alone or in combination with other materials, use dry powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus should be worn. Section6. Accidental release measures Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national standards. Respiratory precaution:Wear approved mask/respirator Hand precaution:Wear suitable gloves/gauntlets Skin protection:Wear suitable protective clothing Eye protection:Wear suitable eye protection Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container for disposal. See section 12. Environmental precautions: Do not allow material to enter drains or water courses. Section7. Handling and storage Handling:This product should be handled only by, or under the close supervision of, those properly qualified in the handling and use of potentially hazardous chemicals, who should take into account the fire, health and chemical hazard data given on this sheet. Store in closed vessels, refrigerated. Storage: Section8. Exposure Controls / Personal protection Engineering Controls: Use only in a chemical fume hood. Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles. General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse. Section9. Physical and chemical properties Appearance:Not specified Boiling point:No data No data Melting point: Flash point:No data Density:No data Molecular formula:C4H4ClNOS Molecular weight:149.6 Section10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride, sulfur oxides. Section11. Toxicological information No data. Section12. Ecological information No data. Section13. Disposal consideration Arrange disposal as special waste, by licensed disposal company, in consultation with local waste disposal authority, in accordance with national and regional regulations. Section14. Transportation information Non-harzardous for air and ground transportation. Section15. Regulatory information No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302, or have known CAS numbers that exceed the threshold reporting levels established by SARA Title III, Section 313. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 异噻唑啉酮有腐蚀性、对皮肤和眼睛有刺激性，操作时应配备防护眼镜和胶手套，一旦接触皮肤、眼睛时，应立即用大量清水冲洗。 CHEMICAL IDENTIFICATION RTECS NUMBER : NX8156850 CHEMICAL NAME : 4-Isothiazolin-3-one, 5-chloro-2-methyl- CAS REGISTRY NUMBER : 26172-55-4 LAST UPDATED : 199710 DATA ITEMS CITED : 5 MOLECULAR FORMULA : C4-H4-Cl-N-O-S MOLECULAR WEIGHT : 149.60 WISWESSER LINE NOTATION : T5SNVJ B1 EG HEALTH HAZARD DATA ACUTE TOXICITY DATA MUTATION DATA TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Salmonella typhimurium DOSE/DURATION : 200 ng/plate REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 118,129,1983 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X3204 No. of Facilities: 2332 (estimated) No. of Industries: 24 No. of Occupations: 25 No. of Employees: 42106 (estimated) No. of Female Employees: 17003 (estimated)

安全

• 危害码 (欧洲): C:Corrosive
• 风险声明 (欧洲): R20/21/22;R34;R43;R50
• 安全声明 (欧洲): S26-S36/37/39-S45-S60-S61-S24-S28
• 危险品运输编码: UN 1760 8/PG 2
• WGK德国: 1
• RTECS号: NX8156850
• 包装等级: III
• 危险类别: 8
• 海关编码: 2934999090

上下游产品

上游产品  3
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制备

1.主要由5-氯-2-甲基-4- 异噻唑啉-3-酮 （CMI）和2-甲基-4-异噻唑啉-3- 酮（MI）组成。

2.二硫代二丙酸二甲酯与甲胺进行氨解反应生成犖，N,N ′ -二甲基二硫代二丙酰胺，然后在乙酸乙酯溶液中通氯气而制得，反应式如下：

将二硫代二丙酸二甲酯加入反应釜，往夹套通冷冻盐水，开动搅拌器，使釜内温度降至0℃，慢慢加入25%甲胺溶液及0.3%稀盐酸，于约5℃反应3h。反应完毕，将反应物放入结晶釜，于室温下放置，使析出N，N ′- 二甲基二硫代二丙酰胺的白色结晶。离心过滤，用少量水洗结晶，然后送入干燥箱于108～110℃烘干。将干燥好的N， 犖N′ -二甲基二硫代二丙酰胺及无水乙酸乙酯加入反应釜，开动搅拌器，于0℃下通入预定量的氯气反应约1h，升至室温，离心过滤，用少量乙酸乙酯洗涤，真空干燥，得（Ⅰ）与 （Ⅱ）的混合物盐酸盐，母液及洗涤液合并，蒸馏塔回收乙酸乙酯。产品中两个活性组分的比例对产品质量影响很大。活性组分CMIO和 MIO可以通过N， 犖N′ -二甲基-3，3- 二硫二丙酰胺氯环化反应而制得。只有当它们质量比达到 CMIO∶MIO＝3∶1时，商品杀菌剂才具有最高的效能。

海关

海关编码	2934999090
中文概述	2934999090. 其他杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素	品名, 成分含量, 用途
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%