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2,4-二甲基噻唑

2,4-二甲基噻唑用途

【用途一】
用作日用、食用香精
【用途二】
用作有机合成中间体。

2,4-二甲基噻唑名称

[ CAS 号 ]:
541-58-2

[ 中文名 ]:
2,4-二甲基噻唑

[ 英文名 ]:
2.4-Dimethyl thiazole

[中文别名 ]:

二甲基硫杂茂

[英文别名 ]:

2,4-DiMethylthiazole
MFCD00014509
Thiazole, 2,4-dimethyl-
2,4-Dimethyl-1,3-thiazole
T5N CSJ B1 E1
4-27-00-00981 (Beilstein Handbook Reference)
EINECS 208-786-9
2.4-Dimethyl thiazole

2,4-二甲基噻唑物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
153.4±9.0 °C at 760 mmHg

[ 分子式 ]:
C₅H₇NS

[ 分子量 ]:
113.181

[ 闪点 ]:
46.0±7.6 °C

[ 精确质量 ]:
113.029922

[ PSA ]:
41.13000

[ LogP ]:
1.56

[ 外观性状 ]:
无色至淡黄色液体

[ 蒸汽压 ]:
4.3±0.3 mmHg at 25°C

[ 折射率 ]:
1.531

[ 储存条件 ]:
−20°C

2,4-二甲基噻唑MSDS

详细MSDS(安全技术说明书)

2,4-二甲基噻唑毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XJ4375000

CHEMICAL NAME :: Thiazole, 2,4-dimethyl-

CAS REGISTRY NUMBER :: 541-58-2

BEILSTEIN REFERENCE NO. :: 0106414

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C5-H7-N-S

MOLECULAR WEIGHT :: 113.19

WISWESSER LINE NOTATION :: T5N CSJ B1 E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 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: AD691-490

2,4-二甲基噻唑安全信息

[ 符号 ]:

GHS02, GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H226-H315-H319-H335

[ 警示性声明 ]:
P261-P305 + P351 + P338

[ 个人防护装备 ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
Xi:Irritant

[ 风险声明 (欧洲) ]:
R10;R36/37/38

[ 安全声明 (欧洲) ]:
S16-S26-S36-S37/39

[ 危险品运输编码 ]:
UN 1993 3/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
XJ4375000

[ 包装等级 ]:
III

[ 危险类别 ]:
3

[ 海关编码 ]:
2934100090

2,4-二甲基噻唑上下游产品

2,4-二甲基噻唑上游产品

2,4-二甲基噻唑下游产品

2,4-二甲基噻唑制备

由乙酰胺与五硫化二磷反应，再与氯化丙酮缩合而得。将无水苯加入反应瓶中，再加入乙酰胺和粉状五硫化二磷的混合物，在水浴上加热。再加上氯代丙酮的苯溶液，加完回流30分钟。然后将水加入反应混合物中，即分层，弃去上层微红色液体，取下层液加氢氧化钠使呈碱性，再加乙醚提取。提取液用无水硫酸钠干燥。过滤，常压蒸馏，收集140-150℃馏分，再将收集物重新蒸馏，收集143-145℃馏分即为2，4-二甲基噻唑。

2,4-二甲基噻唑海关

[ 海关编码 ]: 2934100090

[ 中文概述 ]:
2934100090. 结构上含有一个非稠合噻唑环的化合物(不论是否氢化). 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:20.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

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