21816-42-2

• 常用中文名：2,5-二甲基-4-硝基吡啶1-氧化物
• 常用英文名：2,5-DIMETHYL-4-NITROPYRIDINE 1-OXIDE
• CAS号：21816-42-2
• 分子式：C₇H₈N₂O₃
• 分子量：168.15000
• 发布时间：2018-10-09 12:02:32
• 更新时间：2025-09-11 15:51:07

名称

• 中文名: 2,5-二甲基-4-硝基吡啶1-氧化物
• 英文名: 2,5-dimethyl-4-nitro-1-oxidopyridin-1-ium
• 英文别名: Pyridine,2,5-dimethyl-4-nitro-,1-oxide; 2,5-Dimethyl-4-nitropyridine 1-oxide; 2,5-Dimethyl-4-nitropyridine N-oxide; 2,5-Dimethyl-4-nitropyridin-N-oxid; 4-nitro-2,5-dimethylpyridine-N-oxide

物化性质

• 密度: 1.3g/cm3
• 沸点: 393.8ºC at 760mmHg
• 分子式: C₇H₈N₂O₃
• 分子量: 168.15000
• 闪点: 191.9ºC
• 精确质量: 168.05300
• PSA: 71.28000
• LogP: 2.16330
• 蒸汽压: 4.72E-06mmHg at 25°C
• 折射率: 1.573
• 储存条件: 2-8°C，密封，干燥

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : UT2808000 CHEMICAL NAME : Pyridine, 2,5-dimethyl-4-nitro-, 1-oxide CAS REGISTRY NUMBER : 21816-42-2 LAST UPDATED : 199612 DATA ITEMS CITED : 4 MOLECULAR FORMULA : C7-H8-N2-O3 MOLECULAR WEIGHT : 168.17 WISWESSER LINE NOTATION : T6NJ AO B1 DNW E1 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 1800 mg/kg/15W-I TOXIC EFFECTS : Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application MUTATION DATA TYPE OF TEST : DNA damage TEST SYSTEM : Rodent - mouse Fibroblast DOSE/DURATION : 500 umol/L REFERENCE : CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 35,521,1975

安全

• 海关编码: 2933399090

海关

海关编码	2933399090
中文概述	2933399090. 其他结构含非稠合吡啶环的化合物. 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, 乌洛托品请注明外观, 6－己内酰胺请注明外观, 签约日期
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%