4-Chlorophenoxyacetic Acid CAS 122-88-3 Information
| CAS |
122-88-3 |
| Molecular formula |
C8H7ClO3 |
| Molecular weight |
186.59 |
| EIENCS |
204-581-3 |
| Form |
crystalline |
| Melting point |
157-159 °C |
| boling point |
266.91°C (rough estimate) |
| Density |
1.3245 (rough estimate) |
| Solubility |
|
| PKA |
/ |
| Color |
/ |
| Storage temp |
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What is 4-Chlorophenoxyacetic Acid CAS 122-88-3?
Molecular formula: C₈H₇ClO₃
Molecular weight: 186.59 g/mol
Appearance: White to light yellow needle-like crystals or powder, with a fresh and fragrant smell.
Melting point: 157-159℃ (Industrial grade may fluctuate by 155-156℃).
Solubility
Slightly soluble in water (0.85-1.0g /L at 25℃).
It is readily soluble in organic solvents such as ethanol, acetone and benzene.
Stability: Stable at room temperature, but sensitive to moisture. It should be stored in a sealed container away from light. It decomposes when exposed to strong oxidants.
Acidity and alkalinity: pKa≈3.10 (at 25℃), weakly acidic.
Core values
Agriculture: Highly effective fruit-retaining agent (for tomatoes/grapes), but the harvest interval must be strictly followed (discontinuation ≥3 days).
Pharmaceuticals: Key intermediate for the synthesis of meclofenaxyl, demand is steadily increasing.
Key points of regulatory risks
It is strictly prohibited to use it on sprouts such as bean sprouts. Illegal use will face regulatory penalties.
Agricultural products for export must comply with the residue standards of the destination country (such as ≤0.01 ppm for the European Union).
Operation and Procurement suggestions
Industrial mass production: Prefer Hubei Rishengchang (¥28,000 per ton) or Jiangsu Yongtai, with a focus on 25kg drums.
For research purposes: Choose Shanghai Hengyuan (99.99%) or Nanjing Reagent (CP 99%) to ensure high purity.
Safe storage: Keep sealed and away from light. Long-term storage should be at a low temperature of -20℃. Avoid coexistence with oxidants.
4-Chlorophenoxyacetic Acid CAS 122-88-3 Use
Plant growth regulation
Preventing fruit drop and promoting fruit setting
Tomato: Spray flowers at 20-30 mg/kg to increase fruit setting rate by 30%.
Eggplant/chili: 30-50 mg/kg for flower immersion or spray.
Grapes: Spray 25-30 mg/kg during the flowering period to reduce seed drop.
Enhance storage resistance
Chinese cabbage: Spray 40-100 mg/kg 3 to 10 days before harvest to reduce leaf drop during storage.
2. Medicine and Industry
Pharmaceutical intermediate: Synthesis of the central nervous system stimulant meclofenaxetil.
Industrial auxiliaries: used in the synthesis of dyes, plastic additives and environmentally friendly pesticides.
Prohibited areas
Bean sprout production: The state has explicitly prohibited its use in bean sprouts (Announcement No. 11 of 2015), as it promotes the growth of rootless bean sprouts and has accumulative toxicity.
4-Chlorophenoxyacetic Acid CAS 122-88-3 safety
Health risk
Acute toxicity
Oral LD₅₀ = 850 mg/kg in rats (moderately toxic).
Skin contact is slightly toxic (transcutaneous LD₅₀ >2000 mg/kg in rabbits), but it is irritating to the eyes and skin.
Chronic toxicity
Long-term exposure may induce liver and kidney damage as well as apoptosis of sex cells (mouse experiments).
Environmental and ecological risks
Aquatic toxicity
The LC₅₀ of carp is 3-6 ppm (96 hours), and that of loach is 2.5 ppm (48 hours).
Accumulation toxicity: Metabolites accumulate in organisms, and water pollution needs to be prevented.
Operation protection
Protective requirements: Wear chemical protective gloves, goggles and dust masks during operation to avoid inhaling dust.
Storage conditions: Sealed and dry, refrigerated at 0-6 ℃ (long-term storage is recommended at -20℃).
Deshangchemical Info
- ● Comgpany name : Shandong Deshang Chemicals Co., Ltd.
- ● Main products : Treatments, sedimentation agents, flame retardants, catalysts, matte pigments, talcum powder, PVC additives, antifreeze agents, cellulose, cleaning agents, coconut oil, hydroxyethyl, cosmetics, matte agents, betaine, disinfectants, photosensitizers, humidifying agents, blue pigments, curing agents, potassium formate, sodium formate, cyclohexanol, preservatives, grinding aids.
- ● Date of establishment : 2022-03-11
- ● Total Employees : 200+
- ● Registered capital: 10000000 RMB
Service
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* Every batch of products will be tested to ensureits quality.
*The packing also can be according the customers` requirment.
*Any inquiries will be replied within 24 hours.
*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
