2-Nitrotoluene 2-硝基甲苯

CAS 88-72-2 MFCD00007157

化学结构图

88-72-2
SMILES: Cc1ccccc1[N+](=O)[O-]

化学属性

Mol. FormulaC7H7NO2
Mol. Weight137
Refractive index1.5440 to 1.5480
Boiling Point222°C
Density1.163 g/mL at 25 °C(lit.)
Melting Point-4--3 °C(lit.)
Flash Point106°C(lit.)
TSCAYes
Solubility0.44 g/L (20 °C)

别名和识别编码

Chemical Name2-Nitrotoluene
MDL NumberMFCD00007157
CAS Number88-72-2
Synonym 2-硝基甲苯, 99+% 2-NITROTOLUENE, 99+% 1-甲基-2-硝基苯 2-methyl-1-nitrobenzene ortho-nitrotoluol 2-硝基甲苯,甲基邻硝基苯,1-甲基-2-硝基苯 鄰硝基苯 o-nitrotoluol ortho-Nitrotoluol Toluene, o-nitro- 2-METHYLNITROBENZENE Benzene, methylnitro- o-nitrophenylmethane 2-Nitrotoluol 2-硝基甲苯 Benzene,1-methyl-2-nitro- nitrotoluenes 2-Nitrotoluene Methylnitrobenzol Isomerengemisch 鄰硝甲苯 邻胡基甲苯 Ortho Nitrotoluene 邻甲基硝基苯 1-Methyl-2-nitrobenzene 1-methyl-2-nitro-benzen Benzene, 1-methyl-2-nitro- o-nitro-toluen 邻硝基甲苯 nsc9577 nitrotoluene o-Methylnitrobenzene 2-NITROTOLUENE ONT O-NITROTOLUENE 2-Methylnitrobenzene 1-METHYL-2-NITROBENZENE 2-NITROTOLUENE,1X1ML, ACN 1000UG/ML o-Nitrotoluene ALPHA-METHYLNITROBENZENE 甲基邻硝基苯
PubChem Substance ID87573633
EC Number201-853-3
Beilstein Registry Number5,318
Merck Number6650
Chemical Name Translation2-硝基甲苯
Reaxys-RN1907580
Wiswesser Line NotationWNR B1
LabNetwork Molecule IDLN00227126
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分类

  • {SA} Building Blocks, Chemical Synthesis, Nitro Compounds, Nitrogen Compounds, Organic Building Blocks
  • {uni_hamburg} no charge; carbocycle; aromatic; 6RingOnly; 6ring; 2fragments
  • {SNA} Analytical Standards, Aromatics, Chemical Class, Chromatography, Environmental Standards, Nitro Compounds, Solid Waste, Standards for Personal Care and Cosmetic Products, neats, prohibited substances (EU-REGULATION No 1223/2009), 分析/色谱
  • {SNA} Alphabetical Index of Analytical Standards, Analytical Standards, Analytical/Chromatography, Aromatics, Chemical Class, Chromatography, Environmental Standards, N, NA - NI,

相关文献及参考

  • Short: EINECS
  • Merck: 14,6650 Beilstein:5,318
  • Short: IV/4
  • Merck: 14,6650

安全信息

GHS Symbol
WGK Germany3
Hazard statements
  • H302 Harmful if swallowed 吞食有害
  • H350 May cause cancer 可能致癌
  • H361 Suspected of damaging fertility or the unborn child 怀疑对生育能力或未出生婴儿造成伤害
  • H411 Toxictoaquaticlifewithlonglastingeffects 对水生生物有毒性并具有长期影响。
  • H340 May cause genetic defects 可能导致遗传性缺陷
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
RTECSXT3150000
Precautionary statements
  • P308+P313
  • P301+P312
  • P281 Use personal protective equipment as required. 使用所需的个人防护装备。
  • P273 Avoid release to the environment. 避免释放到环境中。
  • P201 Obtain special instructions before use. 使用前获取专门指示。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
  • P301+P312+P330
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西,喝水或吸烟。
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P202 Do not handle until all safety precautions have been read and understood. 已阅读并理解所有的安全预防措施之前,切勿操作。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P308+P311
Signal word Danger
Packing GroupII
UN Number UN1664 1664 UN 1664 6.1/PG 2
Risk Statements
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
  • R23/24/25 Toxic by inhalation, in contact with skin and if swallowed 吸入,皮肤接触及吞食都有毒
  • R11 Highly flammable 非常易燃
  • R45 May cause cancer 可能致癌
  • R62 Possible risk of impaired fertility 有削弱生殖能力的危险
  • R46 May cause inheritable genetic damage 可能引起遗传基因损害
  • R51/53
  • R22 Harmful if swallowed 吞咽有害
Safety Statements
  • S61 Avoid release to the environment. Refer to special instructions/safety data sheet 避免释放到环境中,参考特别指示/安全收据说明书;
  • S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时,立即求医(可能时出示标签);
  • S53 Avoid exposure - obtain special instructions before use 避免接触,使用前获得特别指示说明;
  • S16 Keep away from sources of ignition - No smoking 远离火源,禁止吸烟;
  • S27 Take off immediately all contaminated clothing 立即脱掉全部污染的衣服;
Hazard Codes T,N T,N,F
Storage condition 密封阴凉干燥保存。 2-8°C
Hazard Class6.1
Warnings 危化品目录(2015)
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 54600 mg/kg/26W-C
TOXIC EFFECTS :
   Tumorigenic - neoplastic by RTECS criteria
   Reproductive - Tumorigenic effects - other reproductive system tumors
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NIH-96-3936

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 1750 mg/kg
TOXIC EFFECTS :
   Brain and Coverings - recordings from specific areas of CNS
   Liver - fatty liver degeneration
   Blood - methemoglobinemia-carboxyhemoglobin
REFERENCE :
   GTPZAB Gigiena Truda i Professional'nye Zabolevaniya.  Labor Hygiene and
   Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
   V.1-36, 1957-1992. For publisher information, see MTPEEI
   Volume(issue)/page/year: 22(7),52,1978

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 891 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: PB214-270

TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 790 mg/m3
TOXIC EFFECTS :
   Brain and Coverings - recordings from specific areas of CNS
   Liver - fatty liver degeneration
   Blood - methemoglobinemia-carboxyhemoglobin
REFERENCE :
   GTPZAB Gigiena Truda i Professional'nye Zabolevaniya.  Labor Hygiene and
   Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
   V.1-36, 1957-1992. For publisher information, see MTPEEI
   Volume(issue)/page/year: 22(7),52,1978

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 970 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dos

TYPE OF TEST            : Unscheduled DNA synthesis
TEST SYSTEM             : Rodent - rat Liver
DOSE/DURATION           : 500 ug/L
REFERENCE :
   EMMUEG Environmental and Molecular Mutagenesis.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.10-    1987-  Volume(issue)/page/year:
   26,147,1995

TYPE OF TEST            : Unscheduled DNA synthesis
ROUTE OF EXPOSURE       : Oral
TEST SYSTEM             : Rodent - rat
DOSE/DURATION           : 200 mg/kg
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   43,2836,1983

TYPE OF TEST            : DNA adduct
ROUTE OF EXPOSURE       : Oral
TEST SYSTEM             : Rodent - rat
DOSE/DURATION           : 150 mg/kg
REFERENCE :
   CBINA8 Chemico-Biological Interactions.  (Elsevier Scientific Pub. Ireland
   Ltd., POB 85, Limerick, Ireland)  V.1-    1969-  Volume(issue)/page/year:
   51,131,1984

TYPE OF TEST            : Sister chromatid exchange
TEST SYSTEM             : Rodent - hamster Ovary
DOSE/DURATION           : 355 mg/L
REFERENCE :
   EMMUEG Environmental and Molecular Mutagenesis.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.10-    1987-  Volume(issue)/page/year:
   10(Suppl 10),1,1987

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 140 gm/kg
SEX/DURATION            : male 13 week(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Paternal Effects - spermatogenesis (incl. genetic material,
   sperm morphology, motility, and count)
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NIH-93-3346

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 32123 mg/kg
SEX/DURATION            : male 13 week(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Paternal Effects - spermatogenesis (incl. genetic material,
   sperm morphology, motility, and count)
   Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NIH-93-3346

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 69154 mg/kg
SEX/DURATION            : female 13 week(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Maternal Effects - menstrual cycle changes or disorders
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NIH-93-3346

Restrict 危险品

其他信息

  • 下游产品:邻甲基苯胺 --> 4-硝基甲苯 --> 吲哚 --> 2,6-二氯甲苯 --> 2,4-二氯甲苯 --> 3-硝基甲苯 --> 2-氰甲基苯磺酰胺 --> 邻硝基苯甲醛 --> 3-氯-2-甲基苯胺 --> 二氯喹啉酸 --> 2,4-二硝基甲苯 --> 4-氯-2-硝基甲苯 --> 2-氯-6-硝基甲苯 --> 硝苯地平 --> 显色基艳红 B --> 亚氨基芪甲酰氯 --> 5-甲基吩嗪硫酸甲酯 --> 5-氯邻甲苯胺 --> 双氯西林钠
  • 邻硝基甲苯:邻硝基甲苯又称2-硝基甲苯、1-甲基-2-硝基苯。黄色油状透明液体。有硝基苯的气味。相对密度1.1629。熔点-2.9℃(α型,稳定型)、-9.5℃ (β型,非稳定型)。沸点221.7℃、118℃(2.133× 103Pa)、50.0℃(0.133×103Pa)。闪点106.1℃ (闭式)。折射率1.5450。粘度0.0262mPa·s (15℃)。蒸气压(×103Pa):10.906(5℃)、12.639 (10℃)、14.612(20℃)、15.892(30℃)。微溶于水(30℃时0.061),溶于苯、氯仿和石油醚,与乙醇和乙醚混溶。随水蒸气一起挥发。由于硝基的强吸电子性,使甲基易被氧化,根据氧化条件,可生成邻硝基苯甲醛或邻硝基苯甲酸;在催化剂作用下还原,可生成邻甲苯胺,继续硝化,生成2,4或2,6二硝基甲苯;也可氯化,生成硝基苄氯;也可生成偶氮化合物。大鼠经口LD50 801mg/kg。 邻硝基甲苯主要用作染料原料,制备4-氯-2-硝基甲苯,6-氯-2-硝基甲苯、邻甲苯胺、联邻甲苯胺和2,6-二氯苯甲醛等染料中间体;其中4-氯-2-硝基甲苯也是医药原料;邻甲苯胺也是农药杀菌剂的原料和香料原料;制备2,2′-二硝基苄、邻硝基苄基溴和溴己烷等医药原料;制备吲哚作为氨基酸和植物生长调节剂的原料;制备二硝基甲苯作为火药的原料;邻甲苯胺也可用作硫化促进剂;制备邻硝基安息香酸作为医药原料。
  • 方法一:甲苯用混酸硝化,生成混合的硝基甲苯,其中主要是邻硝基甲苯(约占三分之二)和对硝基甲苯(约占三分之一),经分离即得纯品。将甲苯加入反应器中,冷却至25℃以下,加入配好的混酸(即硝酸25-30%,硫酸55-58%及水20-21%),调节温度不得超过50℃。连续搅拌1-2h,然后静置6h,将生成的硝基甲苯分离,水洗,碱洗,除去未反应的甲苯及脂肪族化合物,粗制硝基甲苯产品的组成为邻硝基甲苯55-60%、间位2-5%,对位35-40%。收率90-95%。利用沸点与熔点的差别进行粗馏与晶析,可分离出各异构体。即先将粗制硝基甲苯经真空蒸馏,分离出大部分的邻硝基甲苯,残余的含有较多对硝基甲苯的馏分,再经减压蒸馏分出,经冷却,结晶,分离即得成品。高沸点的焦油状物质残存在蒸馏釜中。间位硝基甲苯含在分离对位体后的母液中,经反复积累后再精馏获得。邻位和对位硝基甲苯纯度可分别达98%和99%。国内工艺芝程为两锅串联,反应温度主锅为40-45℃,次锅为50-55℃。混酸的配制大致相仿,硝酸26-28%,硫酸56-57%,水16-18%。原料消耗定额:甲苯(98%)800kg/t、硝酸(98%)470kg/t、硫酸(92.5%)450kg/t、烧碱(42%)100kg/t。
  • 用途一:用作染料、农药的中间体,也用于生产涂料、塑料和医药等
  • 有硝基苯的味道,有毒。能随水蒸气挥发。易熔于乙醇,乙醚,苯,氯仿,易燃。不溶于水,水中溶解度:0.44 g/L (20°C),等毒,半数致死量(大鼠,经口)891mg/kg。有刺激性。
  • 常规方法:参见“对硝基甲苯”。
  • Sigma Aldrich:88-72-2(sigmaaldrich)
  • 图谱信息:2-硝基甲苯(88-72-2)红外图谱(IR2) 2-硝基甲苯(88-72-2)核磁图( 13 CNMR) 2-硝基甲苯(88-72-2)红外图谱(IR1) 2-硝基甲苯(88-72-2)核磁图( 1 HNMR) 2-硝基甲苯(88-72-2)质谱(MS)
  • 用途二:主要用于生产邻甲苯胺、联甲苯胺,是染料、涂料、塑料和医药的重要原料。在医药工业用于生产硝苯吡啶、痛
  • 上游
  • 职业标准:TWA 28 毫克/立方米; STEL 58 毫克/立方米
  • {Che
  • MSDS 信息:2-硝基甲苯(88-72-2).msds
  • {Chem

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