Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Imazapyr
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Imazapyr
Price: ￥288.0/100mg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

DC Chemicals Limited
China
Product Name: Imazapyr acid
Price: $300.0/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

ShangHai DC Chemicals Co.,Ltd
China
Product Name: Imazapyr acid
Price: ￥Inquiry/1g
Purity: 98.9%
Stocking Period: 1 Day
Contact: Tony Lai
Email: order@dcchemicals.com

81334-34-1

81334-34-1 structure

81334-34-1 structure

Name: Imazapyr
Chemical Name: imazapyr
CAS Number: 81334-34-1
Molecular Formula: C₁₃H₁₅N₃O₃
Molecular Weight: 261.276
Catalog: Chemical pesticide herbicide Other herbicides
Create Date: 2018-03-14 08:00:00
Modify Date: 2025-08-21 11:57:02

Name	imazapyr
Synonyms	2-[(RS)-4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl]nicotinic acid Charper 2-(4-Isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinic acid MFCD00144470 (±)-Imazapyr 2-[4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acid Imazapyr Arsenal 250A isopropylamine Salt 3-Pyridinecarboxylic acid, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]- 3-Pyridinecarboxylic acid, 2-[4,5-dihydro-5-methyl-5-(1-methylethyl)-4-oxo-1H-imidazol-2-yl]- T6NJ CVQ B- ET5MV DN CHJ CY1&1 C1 2-[4-methyl-4-(1-methylethyl)-5-oxo-4,5-dihydro-1H-imidazol-2-yl]pyridine-3-carboxylic acid rac-2-[(4R)-4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]pyridine-3-carboxylic acid midazol-2-yl)

Density	1.3±0.1 g/cm3
Boiling Point	425.1±55.0 °C at 760 mmHg
Melting Point	169-173°C
Molecular Formula	C₁₃H₁₅N₃O₃
Molecular Weight	261.276
Flash Point	210.9±31.5 °C
Exact Mass	261.111328
PSA	91.65000
LogP	0.51
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.632
Storage condition	0-6°C
Stability	Stable. Incompatible with strong oxidizing agents.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: US5682500

CHEMICAL NAME :: 3-Pyridinecarboxylic acid, 2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-im idazol- 2-yl)-

CAS REGISTRY NUMBER :: 81334-34-1

LAST UPDATED :: 199612

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C13-H15-N3-O3

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 :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,486,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,486,1991

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

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,486,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: >2150 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,487,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - duck

DOSE/DURATION :: >2150 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 9,487,1991 *** 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

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H319-H412
Precautionary Statements	P273-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant;
Risk Phrases	R36;R52/53
Safety Phrases	S26-S61
RIDADR	NONH for all modes of transport
RTECS	US5682500
HS Code	2933990090

81334-62-5 structure

81334-62-5

~55%

81334-34-1 structure

81334-34-1

Literature: American Cyanamid Company Patent: US4474962 A1, 1984 ;

98-98-6 structure

98-98-6

699-98-9 structure

699-98-9

40963-14-2 structure

40963-14-2

~%

81334-34-1 structure

81334-34-1

Literature: US4518780 A1, ;

Precursor 4
81334-62-5 98-98-6 699-98-9 40963-14-2
DownStream 0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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