2,4-D isooctyl ester

Modify Date: 2025-08-20 17:09:35

2,4-D isooctyl ester Structure
2,4-D isooctyl ester structure
Common Name 2,4-D isooctyl ester
CAS Number 25168-26-7 Molecular Weight 333.25000
Density 1.15 g/cm3 Boiling Point 396.9ºC at 760 mmHg
Molecular Formula C16H22Cl2O3 Melting Point 12ºC
MSDS N/A Flash Point 48ºC

 Use of 2,4-D isooctyl ester


2,4-D isooctyl esteris is a selective herbicide of chlorophenoxy compound with higher boiling point, low volatility, and low drift, which is used to control broadleaf weeds in a variety of settings from crops, lawns, to forests[1].

 Names

Name 6-methylheptyl 2-(2,4-dichlorophenoxy)acetate
Synonym More Synonyms

 2,4-D isooctyl ester Biological Activity

Description 2,4-D isooctyl esteris is a selective herbicide of chlorophenoxy compound with higher boiling point, low volatility, and low drift, which is used to control broadleaf weeds in a variety of settings from crops, lawns, to forests[1].
Related Catalog
References

[1]. Yan Wang, et al. Preparation and characterization of controlled-release poly(melamine-formaldehyde) microcapsules filled with 2,4-D isooctyl ester, International Journal of Polymeric Materials and Polymeric Biomaterials, 66:18, 963-969.

 Chemical & Physical Properties

Density 1.15 g/cm3
Boiling Point 396.9ºC at 760 mmHg
Melting Point 12ºC
Molecular Formula C16H22Cl2O3
Molecular Weight 333.25000
Flash Point 48ºC
Exact Mass 332.09500
PSA 35.53000
LogP 5.13180
Vapour Pressure 1.65E-06mmHg at 25°C
Index of Refraction 1.506
Water Solubility <0.1 g/100 mL at 21 ºC

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
AG8575000
CHEMICAL NAME :
Acetic acid, (2,4-dichlorophenoxy)-, isooctyl ester
CAS REGISTRY NUMBER :
25168-26-7
LAST UPDATED :
199603
DATA ITEMS CITED :
15
MOLECULAR FORMULA :
C16-H22-Cl2-O3
MOLECULAR WEIGHT :
333.28
WISWESSER LINE NOTATION :
GR CG DO1VO5Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
982 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
14 gm/kg/78W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors Liver - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
21 mg/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Blood - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1370 mg/kg
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - live birth index (measured after birth)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
302 mg/kg
SEX/DURATION :
female 9-12 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
188 mg/kg
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - homeostasis Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1131 mg/kg
SEX/DURATION :
female 6-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
528 mg/kg
SEX/DURATION :
female 8-11 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1680 mg/kg
SEX/DURATION :
female 7-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
438 mg/kg
SEX/DURATION :
female 8-12 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
1170 mg/kg
SEX/DURATION :
female 6-14 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - eye/ear

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Human Lymphocyte
DOSE/DURATION :
50 ug/L
REFERENCE :
DBABEF Doga Bilim Dergisi, Seri A2: Biyoloji. Natural Science Journal, Series A2. (Turkiye Bilimsel ve Teknik Arastirma Kurumu, Ataturk Bul. No. 221, Kavaklidere, Ankara, Turkey) V.8- 1984- Volume(issue)/page/year: 8,105,1984 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 15,111,1977 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82947 No. of Facilities: 100 (estimated) No. of Industries: 4 No. of Occupations: 5 No. of Employees: 291 (estimated)

 Safety Information

Hazard Codes T:Toxic;
Risk Phrases R25;R36/38;R40
Safety Phrases S26-S36/37-S45
RIDADR UN 2810
RTECS AG8575000
Packaging Group III
Hazard Class 6.1(b)

 Synonyms

6-Methylheptyl (2,4-dichlorophenoxy)acetate
Esteron GE
Silvapron D
Acetic acid,(2,4-dichlorophenoxy)-,isooctyl ester
Agro-D-Ester
EINECS 246-704-3
2,4-D isooctyl ester
Agroxone 5
2,4,6-TRIS-(TRIFLUOROMETHYL)BENZIMIDAZOLE
Weedtrine-II
MFCD00137356
Herbate Ester 80
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