吡丙醚

Description

pyriproxyfen · CAS 95737-68-1 · C20H19NO3. UNII 3Q9VOR705O. Boiling Point: 318 °C; Melting Point: 47 °C; Melting Point: MP: 49.7 °C.

Identification

CAS Registry Number	95737-68-1
PubChem CID	91753
Molecular formula	C20H19NO3
IUPAC name	2-[1-(4-phenoxyphenoxy)propan-2-yloxy]pyridine
UNII (FDA)	3Q9VOR705O

Computed Descriptors

Molecular Weight	321.4
XLogP3	4.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	7
Exact Mass	321.13649347
Monoisotopic Mass	321.13649347
Topological Polar Surface Area	40.6
Heavy Atom Count	24
Formal Charge	0

Physical & Chemical Properties

Boiling Point	318 °C
Melting Point	47 °C
Melting Point	MP: 49.7 °C
Melting Point	48-50 °C
Flash Point	119 °C c.c.
Density	1.24 at 25 °C
Density	Density (at 20 °C): 1.14 g/cm³
Vapor Pressure	0.00000218 [mmHg]
Vapor Pressure	<9.8X10-8 mm Hg at 23 °C
LogP	log Kow = 5.37

Physical description & handling notes

• Pale yellow liquid; Solidifies on standing; mp = 49.7 deg C; [Merck Index] Colorless solid; mp = 45-47 deg C; [ICSC] Colorless solid or pale yellow liquid; mp = 45-47 deg C; [HSDB] White crystalline solid; [MSDSonline]
• WHITE POWDER OR GRANULES
• Colorless crystals
• Pale yellow waxy solid (technical grade)
• Pale yellow liquid
• Faint odor (technical grade)

GHS Hazard Classification

Reported hazard statements	H400, H410

Documented Uses

• Used as insect growth regulator to control public health pests; [HSDB] Used as insecticide and veterinary ectoparasiticide; [Merck Index] Used as an insecticide to protect tomato, eggplant (aubergine), and cotton plants; [EFSA: Pyriproxyfen - 2009]
• Pyriproxyfen is a potent JH mimic affecting the hormonal balance in insects, thereby resulting in strong suppression of embryogenesis, metamorphosis, and adult formation. It is used to control agricultural, veterinary, and human health pests such as whiteflies and scale insects; flies, mosquitoes, and fleas.
• Information on 88 consumer products that contain Pyriproxyfen in the following categories is provided:
• Preparation: S. Nishida et al., United Kingdom patent 2140010; eidem, United States of America patent 4751225 (1984, 1988 both to Sumitomo)
• QP - Antiparasitic products, insecticides and repellents
• QP53 - Ectoparasiticides, insecticides and repellents

Synonyms

Pyriproxyfen; 95737-68-1; Admiral; 2-[1-Methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine; Nylar; 2-((1-(4-Phenoxyphenoxy)propan-2-yl)oxy)pyridine; juvinal; Distance; Sumilarv; Esteem; Nemesis; Knack; Lano Tape; Archer IGR; NyGuard IGR; Pluto MC

Frequently Asked Questions

What are the CAS number and molecular formula of pyriproxyfen?

CAS 95737-68-1; molecular formula C20H19NO3; molecular weight — g/mol.

What other names is pyriproxyfen known by?

Pyriproxyfen, 95737-68-1, Admiral, 2-[1-Methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine, Nylar, 2-((1-(4-Phenoxyphenoxy)propan-2-yl)oxy)pyridine.

Is pyriproxyfen classified as hazardous?

Hazard statements reported: H400, H410.

What are the key physical properties of pyriproxyfen?

Boiling Point: 318 °C; Melting Point: 47 °C; Melting Point: MP: 49.7 °C; Melting Point: 48-50 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.