Name | 2-Amino-4-chlorobenzothiazole |
Synonyms | AKOS BB-8273 TIMTEC-BB SBB000250 LABOTEST-BB LT00012587 2-Amino-4-chlorobenzothiazole 2-amino-4-chloro-benzothiazol 2-AMINO-4-CHLOROBENZOTHIAZOLE 4-chlorobenzothiazol-2-ylamine 4-chlorobenzo[d]thiazol-2-amine 4-chloro-1,3-benzothiazol-2-amine 4-CHLORO-1,3-BENZOTHIAZOL-2-AMINE 2-Benzothiazolamine,4-chloro-(9CI) 4-chloro-1,3-benzothiazol-2-ylamine |
CAS | 19952-47-7 |
EINECS | 243-439-5 |
InChI | InChI=1/C7H5ClN2S/c8-4-2-1-3-5-6(4)10-7(9)11-5/h1-3H,(H2,9,10) |
InChIKey | OEQQFQXMCPMEIH-UHFFFAOYSA-N |
Molecular Formula | C7H5ClN2S |
Molar Mass | 184.65 |
Density | 1.4750 (rough estimate) |
Melting Point | 203-205 °C (lit.) |
Boling Point | 344.3±34.0 °C(Predicted) |
Flash Point | 162°C |
Vapor Presure | 6.65E-05mmHg at 25°C |
Appearance | White solid |
Color | White to light beige or grayish |
BRN | 136784 |
pKa | 2.14±0.10(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.6100 (estimate) |
MDL | MFCD00005791 |
Physical and Chemical Properties | This product is a white solid powder, m.p.203 ~ 205 ℃, soluble in dichloroethane and other solvents, difficult to dissolve in water. |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36 - Wear suitable protective clothing. |
WGK Germany | 2 |
RTECS | DL1225000 |
TSCA | Yes |
HS Code | 29342080 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Use | 2-amino-4-chlorobenzothiazole is an intermediate for herbicide removal. |
production method | its preparation method is to add o-chlorophenyl thiourea, dichloroethane and glacial acetic acid into a reaction kettle, cool to below 10 ℃, add bromine dropwise at a temperature not higher than 20 ℃, stir for 0.5h after dropping, heat reflux for 4h, finish the reaction, cool and filter, and the filtrate is washed and dehydrated, distillation to recover products from dichloroethane. |
category | toxic substances |
toxicity classification | poisoning |
acute toxicity | oral administration-mouse LD50:2400 mg/kg; Intravenous-mouse LD50:71 mg/kg |
flammability hazard characteristics | combustible; combustion produces toxic nitrogen oxides, sulfur oxides and chloride smoke |
storage and transportation characteristics | warehouse ventilation and low temperature drying |
fire extinguishing agent | dry powder, foam, sand, carbon dioxide, mist water |