4-Chlororesorcinol
Synonym(s):1,3-Dihydroxy-4-chlorobenzene
- CAS NO.:95-88-5
- Empirical Formula: C6H5ClO2
- Molecular Weight: 144.56
- MDL number: MFCD00002273
- EINECS: 202-462-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-01 18:09:03
What is 4-Chlororesorcinol?
Chemical properties
4-Chlororesorcinol is a colorless crystals or off-white to light brown powder. The melting point is 89°C (106.5-107.5°C), the boiling point is 259°C, 147°C (2.4kPa). Soluble in water, alcohol, ether, benzene and carbon disulfide. Can sublimate. It reacts with ferric chloride to generate blue-purple.
The Uses of 4-Chlororesorcinol
4-Chlororesorcinol, can be used as hair dye formulation. It can also be used in the synthesis of series of six coumarin compounds carrying halogen and trifluoromethyl, having antifungal activities.
What are the applications of Application
In cosmetics and personal care products, 4-Chlororesorcinol is used in the formulation of hair dyes, colors and tints.
4-Chlororesorcinol is used in permanent hair coloring systems where color is produced inside the hair fiber. This is accomplished through careful formulation of the product so that the ingredients interact in a highly controlled process.
Preparation
4-Chlororesorcinol is synthesized by reacting resorcinol with dichlorosulfuryl. Resorcinol and diethyl ether were mixed, heated to reflux with stirring, and dichlorosulfuryl was slowly added dropwise. The temperature was then raised to 60°C for 1 h. After recovery of ether, atmospheric distillation is carried out, the distillate is subjected to vacuum distillation again, and the 131°C (0.8-0.93kPa) or 160-164°C (4.0kPa) fractions are collected to obtain the finished 4-chlororesorcinol.
Flammability and Explosibility
Non flammable
Safety
4-chlororesorcinol is classified as a toxic substance and exposure to high concentration of 4-chlororesorcinol could cause several health issues including, skin irritation, serious eye irritation, and other hazards.
The safety of 4-Chlororesorcinol has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that 4-Chlororesorcinol was safe in hair dye formulations.
The CIR Expert Panel concluded that the scientific data suggested that 4-Chlororesorcinol can be safely used in hair dye products. Subchronic dermal exposure to a hair dye product containing 2% 4-Chlororesorcinol produced no evidence of compound-induced toxicity. At the same concentration, no development effects, no evidence of reproductive toxicity, and no carcinogenic effects were seen following dermal exposure. Likewise, 4-Chlororesorcinol was not mutagenic in either a micronucleus or in bacteria, nor did it induce aneuploidy in fungus cells. A 2.5% solution was not a dermal irritant or an ocular irritant.
Purification Methods
Crystallise it from boiling CCl4 (10g/L, charcoal) and dry it in air. [Beilstein 6 II 818.] IRRITANT.
Properties of 4-Chlororesorcinol
Melting point: | 106-108 °C (lit.) |
Boiling point: | 147 °C/18 mmHg (lit.) |
Density | 1.2558 (rough estimate) |
vapor pressure | 0.16Pa at 25℃ |
refractive index | 1.4620 (estimate) |
Flash point: | 146-148°C/18mm |
storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
solubility | >1000g/l |
form | Powder |
pka | 8.28±0.10(Predicted) |
color | Beige |
PH | 3.8 (10g/l, H2O, 30℃) |
Water Solubility | soluble |
BRN | 2042864 |
Stability: | Stable. Incompatible with acid chlorides, acid anhydrides, oxidizing agents. |
CAS DataBase Reference | 95-88-5(CAS DataBase Reference) |
NIST Chemistry Reference | 1,3-Benzenediol, 4-chloro-(95-88-5) |
EPA Substance Registry System | 4-Chlororesorcinol (95-88-5) |
Safety information for 4-Chlororesorcinol
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin H318:Serious eye damage/eye irritation H412:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Chlororesorcinol
Abamectin manufacturer
Gravitas Pharma Pvt Ltd
SNECOFRi PVT LTD
Dikora Bulk Drug Pvt. Ltd.
Evans Fine Chem
LAIRUS PHARMA PVTLTD
Prolife Bio Chemical Industries Pvt Ltd
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