Aminochlorotoluenesulfonicacid
4-amino-6-chlorotoluene-3-sulphonic acid
CAS: 88-51-7
Molecular Formula: C7H8ClNO3S
Aminochlorotoluenesulfonicacid - Names and Identifiers
| Name | 4-amino-6-chlorotoluene-3-sulphonic acid |
| Synonyms | 2B acid Aminochlorotoluenesulfonicacid 4-amino-6-chlorotoluene-3-sulphonic acid 2-Chloro-4-Aminotoluene-5-Sulphonic Acid 2-amino-4-chloro-5-methylbenzenesulfonate 2-Amino-4-Chloro-5-Methylbenzenesulfonic Acid 2-amino-5-chloro-4-methylbenzenesulfonic acid |
| CAS | 88-51-7 |
| EINECS | 201-837-6 |
| InChI | InChI=1/C7H8ClNO3S/c1-4-2-7(13(10,11)12)6(9)3-5(4)8/h2-3H,9H2,1H3,(H,10,11,12)/p-1 |
Aminochlorotoluenesulfonicacid - Physico-chemical Properties
| Molecular Formula | C7H8ClNO3S |
| Molar Mass | 221.664 |
| Density | 1.3031 (rough estimate) |
| Melting Point | >300°C |
| Boling Point | 163°C (rough estimate) |
| Appearance | Form Solid, color Off-White to Pale Red |
| pKa | -1.58±0.50(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.6210 (estimate) |
| MDL | MFCD00035771 |
| Physical and Chemical Properties | Appearance of white, beige or microstrip rose red crystalline powder, micro-soluble in hot water, insoluble in cold water, benzene and chlorobenzene, soluble in ethanol, ether and dilute alkali solution. |
| Use | It is an important intermediate for organic pigments, and can be used to synthesize fast red BBN, permanent red F5R, fast red BBS, permanent red 2BL, fast red MGP and so on. |
Aminochlorotoluenesulfonicacid - Risk and Safety
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 3261 |
| RTECS | XT6330000 |
| Toxicity | LD50 oral in rat: 12300mg/kg |
Aminochlorotoluenesulfonicacid - Upstream Downstream Industry
| Raw Materials | Sodium sulfide 4-Nitrotoluene 2-Chloro-4-nitrotoluene 3-Chloro-4-methylaniline |
| Downstream Products | Pigment Red 21 Pigment Red 48:2 Pigment Fast Dark Red BBM Pigment Red 48:1 Pigment Red 48:3 |
Aminochlorotoluenesulfonicacid - Introduction
Soluble in dilute alkali solution, ethanol and ether, insoluble in cold, benzene and chlorobenzene, slightly soluble in hot water: nitrite in dilute acid is diazotized, which has the general properties of amines.
Last Update：2022-10-16 17:29:34
Aminochlorotoluenesulfonicacid - Safety
Open Data Verified Data
toxic. The use of plastic bags lined with wood or iron drum packaging. Store in a cool, ventilated, dry place. Moisture-proof and heat-proof. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:55:39
Aminochlorotoluenesulfonicacid - Security information
| Hazard Level | 8 |
| packaging category | III |
| toxic substance data | 88-51-7(Hazardous Substances Data) |
Last Update：2024-04-10 22:29:15
Aminochlorotoluenesulfonicacid - Nature
| Solubility | Aqueous Acid (Slightly), DMSO (Slightly) |
| EPA chemical information | Benzenesulfonic acid, 2-amino-4-chloro-5-methyl- (88-51-7) |
Last Update：2024-04-09 18:58:34
Aminochlorotoluenesulfonicacid - Uses and synthesis methods
Production method
P> with p-nitrotoluene as raw material, the mixture of o-chloro-nitrotoluene and m-chloro-nitrotoluene is formed by chlorination, and o-chloro-p-nitrotoluene is separated by crystallization, and then the finished product is obtained by reduction, refining and sulfonation. Raw material consumption quota: p-nitrotoluene (98.5%)780 kg/t, sulfuric acid (98)485 kg/t, chlorine (99%)589 kg/t, sulfur (99%)273 kg/t, sodium sulfide (63.5%)1051 kg/t, hydrochloric acid (32.5%)391 kg/t.category
Toxic substances
Toxicity classification
low toxicity
Acute toxicity
oral-rat LD50: 12000 mg/kg
Stimulus data
eye-rabbit 500 mg/24 hours moderate
flammability hazard characteristics
Combustible; combustion produces toxic nitrogen oxides, sulfur oxides and chloride fumes
storage and transportation features
Warehouse ventilation low temperature drying
Fire extinguishing agent
Dry powder, foam, sand, carbon dioxide, mist water
Last Update：2024-04-09 21:04:16
Supplier List
Spot supply
Product Name: 4-amino-6-chlorotoluene-3-sulphonic acid Request for quotationCAS: 88-51-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: 4-amino-6-chlorotoluene-3-sulphonic acid Request for quotationCAS: 88-51-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Spot supply
Product Name: 4-Amino-2-chlorotoluene-5-sulfonic Acid Visit Supplier Webpage Request for quotationCAS: 88-51-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: 4-amino-6-chlorotoluene-3-sulphonic acid Request for quotationCAS: 88-51-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: 4-amino-6-chlorotoluene-3-sulphonic acid Request for quotationCAS: 88-51-7
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Spot supply
Product Name: 4-Amino-2-chlorotoluene-5-sulfonic Acid Visit Supplier Webpage Request for quotationCAS: 88-51-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History
Raw Materials for Aminochlorotoluenesulfonicacid
Downstream Products for Aminochlorotoluenesulfonicacid