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2,5-二硫二脲

2,5-二硫二脲用途

【用途一】
双硫脲是杀菌剂叶枯唑的中间体。
【用途二】
农药和医药中间体。

2,5-二硫二脲名称

[ CAS 号 ]:
142-46-1

[ 中文名 ]:
2,5-二硫代联二脲

[ 英文名 ]:
2,5-Dithiobiurea

[中文别名 ]:

[英文别名 ]:

MFCD00014471
DITHIOUREA
bithiourea
bisthiourea
usafb-44
usafb-55
2,5-dithiourea
DITHIODIUREA
2,5-Dithiobiurea
DITHIOBIUREA

2,5-二硫二脲物理化学性质

[ 密度 ]:
1.6±0.1 g/cm3

[ 沸点 ]:
291.6±23.0 °C at 760 mmHg

[ 熔点 ]:
212 °C (dec.)(lit.)

[ 分子式 ]:
C₂H₆N₄S₂

[ 分子量 ]:
150.226

[ 闪点 ]:
130.1±22.6 °C

[ 精确质量 ]:
150.003387

[ PSA ]:
140.28000

[ LogP ]:
-1.12

[ 外观性状 ]:
灰白色结晶粉末

[ 蒸汽压 ]:
0.0±0.6 mmHg at 25°C

[ 折射率 ]:
1.771

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、酸类分开存放

2,5-二硫二脲MSDS

详细MSDS(安全技术说明书)

2,5-二硫二脲毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EC1460000

CHEMICAL NAME :: Biurea, 2,5-dithio-

CAS REGISTRY NUMBER :: 142-46-1

BEILSTEIN REFERENCE NO. :: 1723178

LAST UPDATED :: 199701

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C2-H6-N4-S2

MOLECULAR WEIGHT :: 150.24

WISWESSER LINE NOTATION :: SUYZMMYZUS

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 655 gm/kg/78W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1310 gm/kg/78W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Ovary

DOSE/DURATION :: 145 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

2,5-二硫二脲安全信息

[ 危害码 (欧洲) ]:
Xi:Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S37/39

[ WGK德国 ]:
3

[ RTECS号 ]:
EC1460000

[ 海关编码 ]:
2930909090

2,5-二硫二脲合成路线

详细合成路线

2,5-二硫二脲上下游产品

2,5-二硫二脲上游产品

2,5-二硫二脲下游产品

2,5-二硫二脲制备

1.硫酸肼和硫氰酸胺经缩合、重排出得。

2. 其制备方法是在反应釜中于搅拌下投入湿基硫酸肼，加入催化剂少量，然后再投入硫氰酸铵，开夹套蒸汽加热回流3.5h，冷却，放料，过滤，用水洗涤，真空吸滤至干，得成品。

2,5-二硫二脲海关

[ 海关编码 ]: 2930909090

[ 中文概述 ]:
2930909090. 其他有机硫化合物. 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:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%