2-氨基-5-氯对甲苯磺酸
5-amino-2-chlorotoluene-4-sulphonic acid
CAS: 88-53-9
Molecular Formula: C7H8ClNO3S
2-氨基-5-氯对甲苯磺酸 - Names and Identifiers
| Name | 5-amino-2-chlorotoluene-4-sulphonic acid |
| Synonyms | CLT CLT ACID LAKE RED C AMINE 5-AMINO-2-CHLORO-4-SULFOTOLUENE 6-CHLORO-3-TOLUIDINE-4-SULFONIC ACID 4-CHLORO-M-TOLUIDINE-6-SULFONIC ACID 5-AMINO-2-CHLOROTOLUENE-4-SULFONIC ACID 5-Amino-2-chlorotoluene-4-sulfonic acid 4-CHLORO-5-METHYLANILINE-2-SULFONIC ACID 6-CHLORO-3-AMINO TOLUENE-4-SULFONIC ACID 2-amino-5-chlorotoluene-4-sulphonic acid 5-amino-2-chlorotoluene-4-sulphonic acid 2-Amino-5-Chloro-4-Methylbenzenesulfonic Acid |
| CAS | 88-53-9 |
| EINECS | 201-839-7 |
| InChI | InChI=1/C7H8ClNO3S/c1-4-2-6(9)7(3-5(4)8)13(10,11)12/h2-3H,9H2,1H3,(H,10,11,12) |
2-氨基-5-氯对甲苯磺酸 - Physico-chemical Properties
| Molecular Formula | C7H8ClNO3S |
| Molar Mass | 221.66 |
| Density | 1.553±0.06 g/cm3(Predicted) |
| Water Solubility | Practically insoluble in water |
| Appearance | Powder |
| Color | White to Light yellow to Light orange |
| pKa | -1.59±0.50(Predicted) |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | White crystals. |
| Use | As an intermediate for the dye golden red C |
2-氨基-5-氯对甲苯磺酸 - 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. |
| RTECS | DB4807000 |
2-氨基-5-氯对甲苯磺酸 - Nature
Open Data Verified Data
white crystals.
Last Update：2024-01-02 23:10:35
2-氨基-5-氯对甲苯磺酸 - Preparation Method
Open Data Verified Data
with toluene as raw material, by sulfonation, chlorination, nitration, salting out, reduction, finally by pressure filtration, drying to get the finished product.
Last Update：2022-01-01 10:55:37
2-氨基-5-氯对甲苯磺酸 - Use
Open Data Verified Data
dye intermediates, used in the manufacture of Red Lake C, lisol red IG; Widely used in the preparation of ink.
Last Update：2022-01-01 10:55:37
2-氨基-5-氯对甲苯磺酸 - Safety
Open Data Verified Data
- toxic. For protection, see 4-chloroaniline-3-sulfonic acid.
- the use of plastic bags lined with wood or iron drum packaging. Store in a cool, ventilated, dry place, heat, moisture. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:55:37
2-氨基-5-氯对甲苯磺酸 - Reference Information
| LogP | -0.83 at 23℃ and pH2.6-2.7 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as an intermediate of the dye golden red C dye intermediate, used in the production of Red Lake C linsol Red 2G, etc. |
| production method | nitration of 3-chloro-4-toluenesulfonic acid with nitric acid below 30 °c, after reaction for 3H, 2-nitro-5-chloro-p-toluenesulfonic acid was obtained by salting out with saturated brine at 100 ℃: 2-nitro-5-chloro-p-toluenesulfonic acid was added into water, acetic acid and iron powder were added, reduction under boiling conditions. The reaction was filtered to remove iron powder, and hydrochloric acid was added to make the filtrate acidic to crystallize 2-amino-5-chloro-p-toluenesulfonic acid. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:52:54
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View History
2-氨基-5-氯对甲苯磺酸
4-[2-(2-氨基-4,7-二氢-4-氧代-1H-吡咯并[2,3]嘧啶-5-基)乙基]苯甲酰基-L-谷氨酸二乙酯
5-氨基-2-硝基苯甲酸(纯品)[用于&GAMMA
2-甲氧基-5-溴-6-甲基吡啶
2,4-二甲基-1-碘苯
2-氟-4-碘吡啶-3-甲酸
Platinum(2+) iodide ammoniate (1:2:2)
2-甲基-5-氯-6-氨基苯并恶唑
2,4-二氯-7-苯基-6,7-二氢-5H-环戊烷并[D]嘧啶
4-[2-(2-氨基-4,7-二氢-4-氧代-1H-吡咯并[2,3]嘧啶-5-基)乙基]苯甲酰基-L-谷氨酸二乙酯
5-氨基-2-硝基苯甲酸(纯品)[用于&GAMMA
2-甲氧基-5-溴-6-甲基吡啶
2,4-二甲基-1-碘苯
2-氟-4-碘吡啶-3-甲酸
Platinum(2+) iodide ammoniate (1:2:2)
2-甲基-5-氯-6-氨基苯并恶唑
2,4-二氯-7-苯基-6,7-二氢-5H-环戊烷并[D]嘧啶