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Pyriftalid

Pyriftalid structure

CAS No:
135186-78-6
Formula:
C15H14N2O4S
Chemical Name:
Pyriftalid
Synonyms:
1(3H)-Isobenzofuranone,7-[(4,6-dimethoxy-2-pyrimidinyl)thio]-3-methyl-;7-[(4,6-Dimethoxy-2-pyrimidinyl)thio]-3-methyl-1(3H)-isobenzofuranone;Pyriftalid;7-(4,6-Dimethoxypyrimidin-2-ylthio)-3-methylphthalide;Graminicide;Huanzhicaomi
Categories:
Analytical Chemistry > Standard

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Description

m.p.159～160℃

Pyriftalid is a member of 2-benzofurans.

Pyriftalid Basic Attributes

Molecular Weight：

318.35

Exact Mass：

318.35

EC Number：

603-904-9

DSSTox ID：

DTXSID5057961

HScode：

29349990

Characteristics

PSA：

95.8

XLogP3：

2.87640

Density：

1.39±0.1 g/cm3(Predicted)

Boiling Point：

555.6±60.0 °C(Predicted)

Flash Point：

289.84ºC

Refractive Index：

1.635

Storage Conditions：

0-6°C

Vapor Pressure：

0mmHg at 25°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

Precautionary statement(s)：

P260, P273, P314, P391, P501

Hazard Statements：

H373

GHS Classification：

|Warning|H373 (100%): Causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]|P260, P273, P314, P391, and P501|Aggregated GHS information provided by 156 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P260, P261, P264, P270, P272, P280, P301+P312, P302+P352, P309+P311, P314, P321, P330, P333+P313, P363, P405, and P501

Drug Information

MeSH Entry Terms：

CGA 279233

Pyriftalid Use and Manufacturing

Methods of Manufacturing

The preparation of 2-methylsulfonyl-4, 6-dimethoxypyrimidine. The preparation of 7-mercapto-3-methylphthalide. The synthesis of cyprofen with o-chlorobenzoic acid as raw material and o-chlorophthalic anhydride as raw material 2-Methylsulfonyl-4, 6-dimethoxypyrimidine and 7-mercapto-3-methylphthalide condensation system.

Uses

Pyrimidine-salicylic acid herbicides, acetolactate synthase (ALS) inhibitors, their activity is low when measured with enzymes under in vitro conditions, but they are absorbed by stems and leaves and produce metabolites with good efficacy after being metabolized by the plant body. And through systemic conduction, weeds stop growing and then die. It is mainly used to control barnyard grass and other grass weeds in paddy fields. It is safe for the crops after rice stubble. The dosage is 100-300g active ingredient/hm2.

Use Classification：

Agrochemicals -> Herbicides

Computed Properties

Molecular Weight:318.3
XLogP3:3
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:4
Exact Mass:318.06742811
Monoisotopic Mass:318.06742811
Topological Polar Surface Area:95.8
Heavy Atom Count:22
Complexity:399
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes