Diquat (bromide)

Modify Date: 2026-07-02 07:46:42

Diquat (bromide) Structure
Diquat (bromide) structure
Common Name Diquat (bromide)
CAS Number 85-00-7 Molecular Weight 264.14100
Density 1.25 Boiling Point N/A
Molecular Formula C12H12BrN2+ Melting Point 330-340(分解)ºC
MSDS N/A Flash Point N/A

 Use of Diquat (bromide)


Diquat dibromide is a comprehensive herbicide commonly used in the cultivation of cotton, soybeans, and other crops to combat unwanted weeds. Diquat dibromide has an IC50 of 60 mg/L in the Allium root growth inhibition test[1].

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name diquat dibromide
Synonym More Synonyms

 Diquat (bromide) Biological Activity

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description Diquat dibromide is a comprehensive herbicide commonly used in the cultivation of cotton, soybeans, and other crops to combat unwanted weeds. Diquat dibromide has an IC50 of 60 mg/L in the Allium root growth inhibition test[1].
Related Catalog
References

[1]. Acar A. In vivo toxicological assessment of diquat dibromide: cytotoxic, genotoxic, and biochemical approach. Environ Sci Pollut Res Int. 2021;28(34):47550-47561.

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.25
Melting Point 330-340(分解)ºC
Molecular Formula C12H12BrN2+
Molecular Weight 264.14100
Exact Mass 263.01800
PSA 7.76000
LogP 1.90030
InChIKey ODPOAESBSUKMHD-UHFFFAOYSA-L
SMILES [Br-].[Br-].c1cc[n+]2c(c1)-c1cccc[n+]1CC2
Water Solubility Soluble. 70 g/100 mL

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
JM5690000
CHEMICAL NAME :
Dipyrido(1,2-a;2',1'-c)pyrazinediium, 6,7-dihydro-, dibromide
CAS REGISTRY NUMBER :
85-00-7
LAST UPDATED :
199806
DATA ITEMS CITED :
46
MOLECULAR FORMULA :
C12-H12-N2.2Br
MOLECULAR WEIGHT :
344.08
WISWESSER LINE NOTATION :
T B666 GK JK&T&J &Q 2 &E 2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
120 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
433 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
500 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 :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
20 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
14 mg/kg
TOXIC EFFECTS :
Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>500 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 :
Oral
SPECIES OBSERVED :
Bird - duck
DOSE/DURATION :
564 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 :
Oral
SPECIES OBSERVED :
Mammal - domestic
DOSE/DURATION :
30 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 :
Unreported
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
400 mg/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 - rat
DOSE/DURATION :
988 mg/kg/19W-I
TOXIC EFFECTS :
Liver - other changes Endocrine - hypoglycemia Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - isomerases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
7 mg/kg
SEX/DURATION :
female 7 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intravenous
DOSE :
15 mg/kg
SEX/DURATION :
female 17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - fetal death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
10800 ug/kg
SEX/DURATION :
female 9-12 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Lung
REFERENCE :
TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 31(Suppl),214,1986 *** REVIEWS *** TOXICOLOGY REVIEW CRTXB2 CRC Critical Reviews in Toxicology. (CRC Press, Inc., 2000 Corporate Blvd., NW, Boca Raton, FL 33431) V.1- 1971- Volume(issue)/page/year: 1(1),93,1971 TOXICOLOGY REVIEW DTTIAF Deutsche Tieraerztliche Wochenschrift. (Hanover, Fed. Rep. Ger.) V.1-77, 1893-1970. Volume(issue)/page/year: 80,485,1973 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 0.5 mg/m3 DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,17,1973 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 0.5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 0.5 mg/m3 JAN 1993 OEL-DENMARK:TWA 0.5 mg/m3 JAN 1993 OEL-FINLAND:TWA 0.5 mg/m3;STEL 1.5 mg/m3 JAN 1993 OEL-FRANCE:TWA 0.5 mg/m3 JAN 1993 OEL-HUNGARY:STEL 0.1 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.5 mg/m3;STEL 1 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO DIQUAT-air:10H TWA 0.5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83281 No. of Facilities: 98 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 200 (estimated)

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes T:Toxic
Risk Phrases R21;R25
Safety Phrases S36/37-S45
RIDADR UN 2781/2811
Packaging Group II
Hazard Class 6.1(a)
HS Code 2933990017

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~93%

Diquat (bromide) Structure

Diquat (bromide)

CAS#:85-00-7

Learn More
Literature: Xiao, Youli; Chu, Lisa; Sanakis, Yiannis; Liu, Pinghua Journal of the American Chemical Society, 2009 , vol. 131, # 29 p. 9931 - 9933

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  2

DownStream  1

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2933990017
Summary 2933990017 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazine-5,8-diium bromide。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

EINECS 201-579-4
DEIQUAT 1-HYDRATE
Diquat dibromide
6,7-dihydrodipyrido(1,2-a:2,1-c)pyrazinediium dibromide
deiquat dibromide
Reglox
DIQUAT-D4 DIBROMIDE
MFCD01074187
9,10-dihydro-8a,10a-diazoniaphenanthrene dibromide
DEIQUAT MONOHYDRATE
6,7-dihydrodipyrido[1,2-a:2’,1’-c]pyrazine-5,8-diium dibromide
DIQUAT DIBROMIDE-D4
diquat dication dibromide
Dquat
pp100
6,7-Dihydrodipyrido<1,2-a:2',1'-c>pyrazinium dibromide
1,1’-ethylene-2,2’-bipyridyldiylium dibromide
Diquat dibromide D4
DIQUATEDIBROMIDE
weedtrine-d
Reward
preeglone
DIQUATBROMIDE
ortho-diquat
6,7-dihydrodipyrido[1,2-a:2’,1’-c]pyrazinediium dibromide
reglon

 Diquat (bromide) | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the downstream products of diquat dibromide?
A: Related downstream products(CAS) of diquat dibromide: 4032-26-2.
Q: How is the water solubility of diquat dibromide?
A: Water solubility of diquat dibromide: Soluble. 70 g/100 mL.
Q: What is the English name of diquat dibromide?
A: The English name of diquat dibromide is diquat dibromide.
Q: What is the SMILES notation of diquat dibromide?
A: SMILES notation of diquat dibromide is [Br-].[Br-].c1cc[n+]2c(c1)-c1cccc[n+]1CC2.
Q: What is the LogP of diquat dibromide?
A: LogP of diquat dibromide is 1.90030.
Q: What is the CAS number of diquat dibromide?
A: CAS number of diquat dibromide is 85-00-7.
Q: What is the polar surface area (PSA) of diquat dibromide?
A: Polar surface area (PSA) of diquat dibromide is 7.76000.
Q: What is the InChIKey of diquat dibromide?
A: InChIKey of diquat dibromide is ODPOAESBSUKMHD-UHFFFAOYSA-L.
Q: What is the safety information for diquat dibromide?
A: Safety information for diquat dibromide: S36/37-S45.
Q: What is the molecular weight of diquat dibromide?
A: Molecular weight of diquat dibromide is 264.14100.

 Diquat (bromide)factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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