2-(4-Chloro-2-methylphenoxy)propanoic acid
- CAS NO.:93-65-2
- Empirical Formula: C10H11ClO3
- Molecular Weight: 214.65
- MDL number: MFCD00002648
- EINECS: 202-264-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-22 18:57:36
What is 2-(4-Chloro-2-methylphenoxy)propanoic acid?
Description
Mecoprop is a colorless, odorless, crystallinesolid. Molecular weight =214.66; Freezing/Meltingpoint 5 9395℃. Slightly soluble in water.
Chemical properties
Off-White Solid
Chemical properties
Mecoprop is a colorless, crystalline solid. Odorless.
The Uses of 2-(4-Chloro-2-methylphenoxy)propanoic acid
Herbicide.
Definition
ChEBI: 2-(4-chloro-2-methylphenoxy)propanoic acid is a monocarboxylic acid that is lactic acid in which the hydroxyl hydrogen is replaced by a 4-chloro-2-methylphenyl group. It is an aromatic ether, a monocarboxylic acid and a member of monochlorobenzenes. It is functionally related to a rac-lactic acid.
General Description
Colorless crystals. Corrosive to metals. Used as an herbicide.
Air & Water Reactions
Soluble in water.
Reactivity Profile
A phenoxy aryloxyalkanoic acid derivative.
Hazard
Toxic by ingestion and inhalation, irritant to skin and eyes.
Agricultural Uses
Herbicide: A General Use Pesticide, postemergent herbicide, most often used in combination with other pesticides. Most of the production is used on turf, including lawns, sport turf and commercial sod production for control of creeping broadleaf weeds such as clovers, chickweed, ivy, plantain and similar plants. It is also used on wheat, barley and oats. A small percentage is used in noncrop areas such as rights-of-way, drainage ditch banks and forest site preparation.
Trade name
ASSASSIN®; BANVEL P®; BH MECOPROP®; CERIDOR®; CHIPCO®; CHIPCO TURF HERBICIDE MCPP®; CLEAVAL®; CLENECORN®; CLOVOTOX®; COMPITOX EXTRA®; CORNOX PLUS®; CR 205®; CRUSADER®; DOCKLENE®; EXP 419®; GRASLAM®; HARNESS®; HARRIER®; HEDONAL MCPP®; HERRISOL®; HYMEC®; IOTOX®; ISO-CORNOX®; KILPROP®; LIRANOX®; MECOBROM®; MECOMIN D®; MECOPEOP®; MECOPAR®; MECOPEX®; MECOTURF®; MEPRO®; MECHLORPROP®; MECOPROP®; MYLONE®; MUSKETEET®; POST-KITE®; PROPAL®; PROPONEX- PLUS®; RANKOTEX®; RD 4593®; RUNCATEX®; SELOXONE®; SCOTLENE®; SEL-OXONE®; SUPER GREEN AND WEED®; SUPOERTOX®; SWIPE 560 EC®; TARGET®; TERSET®; TETRALEN-PLUS®; TRIESTER II®; TRIMEC 1144 40% SP®; TRIPLET®; U 46®; U 46 KV-ESTER®; VERDONE®; VI-PAR®; VI- PEX®; VIPEX®
Safety Profile
Suspected carcinogen. Poison by ingestion. Moderately toxic by skin contact and intraperitoneal routes. Experimental teratogenic and reproductive effects. Mutation data reported. An herbicide. When heated to decomposition it emits toxic fumes of Cl-
Potential Exposure
It is a chlorophenoxy-herbicide, used to control many broadleaf weeds. A derivative of phenoxy aryloxyalkanoic acid.
First aid
If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seekmedical attention immediately. If this chemical contactsthe skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove fromexposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing hasstopped and CPR if heart action has stopped. Transferpromptly to a medical facility. When this chemical hasbeen swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
Storage
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from oxidizers and strong bases.
Shipping
UN3345 Phenoxyacetic acid derivative pesticide, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials
Incompatibilities
A weak acid. Incompatible with strong bases and oxidizers.
Waste Disposal
In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
Properties of 2-(4-Chloro-2-methylphenoxy)propanoic acid
| Melting point: | 88-90°C |
| Boiling point: | 308.11°C (rough estimate) |
| Density | 1.2413 (rough estimate) |
| refractive index | 1.5390 (estimate) |
| storage temp. | APPROX 4°C
|
| form | neat |
| pka | 3.19±0.10(Predicted) |
| Water Solubility | 895mg/L(25 ºC) |
| BRN | 6568283 |
| CAS DataBase Reference | 93-65-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Propanoic acid, 2-(4-chloro-2-methylphenoxy)-(93-65-2) |
| EPA Substance Registry System | Mecoprop (93-65-2) |
Safety information for 2-(4-Chloro-2-methylphenoxy)propanoic acid
| Signal word | Danger |
| Pictogram(s) |
![]() Corrosion Corrosives GHS05 ![]() Skull and Crossbones Acute Toxicity GHS06 ![]() Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H311:Acute toxicity,dermal H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 2-(4-Chloro-2-methylphenoxy)propanoic acid
New Products
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