Pharmaceutical Materials

Fenclorim, a pyrimidine-based herbicide safener (CAS No.: 3740-92-9), is widely utilized to protect crops from phytotoxicity induced by chloroacetanilide herbicides like pretilachlor. By modulating glutathione conjugation pathways in plants, Fenclorim enhances herbicide selectivity, allowing effective weed control without harming crops such as direct-seeded rice. Its application ratio with pretilachlor ranges from 1:2 (temperate regions) to 1:3 (tropical/subtropical zones). Notably, Fenclorim exhibits low mammalian toxicity, with acute oral LD50 >5000 mg/kg in rats and no observed effects in 90-day feeding trials at 100 mg/kg/day. Additionally, it poses minimal risk to aquatic life (LC50 for rainbow trout: 0.6 mg/L) and non-target organisms like bees. These attributes make Fenclorim a cornerstone in sustainable agriculture, balancing weed management with environmental safety.

 

Fenclorim Usage: Used as a antidote agent for herbicides, to eliminate herbicide residues in the soil. Fenclorim Packaging and Shipping： 25KG/drum or as per buyer’s requirements Fenclorim Storage: Storage in ventilated low temperature dry warehouse; Keep container closed and separately from open flame and heat source.

Name	Fenclorim
Synonyms	SOFIT femclorim NSC 27713 Fenclorim CGA-123407 fenclorime cga-123407 Fenclorime BRN 0142293 Fenclorim [ISO] fenclorim, fenclorime 4,6-dichloro-2-phenylpyrimidine 4,6-dichloro-2-phenyl-pyrimidin 4,6-DICHLORO-2-PHENYLPYRIMIDINE Pyrimidine, 4,6-dichloro-2-phenyl- 5-23-08-00007 (Beilstein Handbook Reference)
CAS	3740-92-9
InChI	InChI=1/C10H6Cl2N2/c11-8-6-9(12)14-10(13-8)7-4-2-1-3-5-7/h1-6H

Molecular Formula	C10H6Cl2N2
Molar Mass	225.07
Density	1.363±0.06 g/cm3(Predicted)
Melting Point	92-93°C
Boling Point	235.5±33.0 °C(Predicted)
Flash Point	118.9°C
Solubility	Chloroform (Slightly), DMSO (Slightly), Methanol (Sparingly)
Vapor Presure	0.0762mmHg at 25°C
Appearance	neat
Color	Off-White to Pale Yellow
BRN	142293
pKa	-4.69±0.30(Predicted)
Storage Condition	Inert atmosphere,2-8°C
Refractive Index	1.604
Physical and Chemical Properties	Colorless crystals. Melting point of 96.9 ° C, the relative density of 1.5, soluble in acetone, cyclohexanone, dichloromethane, toluene, xylene, hexane-soluble, methanol, octanol, isopropanol.
Use	Safety herbicide

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