Name: Pyributicarb
SKU: 88678-67-5

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Basic Information

Molecular Structure:
CAS No.:	88678-67-5
Name:	Pyributicarb

Formula:	C18H22 N2 O2 S
Molecular Weight:	330.48
Synonyms:	Carbamothioicacid, (6-methoxy-2-pyridinyl)methyl-, O-[3-(1,1-dimethylethyl)phenyl] ester(9CI); Isshintasuke; Isshintasuke flowable; O-3-tert-ButylphenylN-(6-methoxy-2-pyridyl)-N-methylthiocarbamate; Pyributicarb; TSH 888
Density:	1.16g/cm3
Melting Point:	85～88℃
Boiling Point:	427.8oC at 760 mmHg
Flash Point:	212.5oC
Hazard Symbols:	N
Risk Codes:	50/53
Safety:	Low toxicity by ingestion, inhalation, intraperitoneal, subcutaneous, and skin contact. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NO_x and SO_x.
PSA:	75.47000
LogP:	4.23210

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Chemistry

IUPAC Name: O-(3-tert-butylphenyl) N-(6-methoxypyridin-2-yl)-N-methylcarbamothioate
Synonyms: Carbamothioicacid,(6-methoxy-2-pyridinyl)methyl-,o-(3-(1,1-dimethylethyl)p;henyl)ester ; N-(6-Methoxy-2-pyridyl)-n-methyl-thiocarbamicacio-3-tert-butylphenyleste ; Tsh-888 ; Pyributicarb ; Pyributycarb ; N-(6-Methoxy-2-pyridyl)-n-methylthiocarbamic acid o-3-tert-butylphenyl ester ; O-3-Tert-Butylphenyl (6-methoxy-2-pyridyl)(methyl)thiocarbamate
Molecular Structure of Pyributicarb (CAS NO. 88678-67-5) :
Molecular Formula of Pyributicarb (CAS NO. 88678-67-5) : C₁₈H₂₂N₂O₂S
Molecular Weight of Pyributicarb (CAS NO. 88678-67-5) : 330.44
CAS NO: 88678-67-5
Index of Refraction: 1.598
Surface Tension: 47.3 dyne/cm
Density: 1.16 g/cm³
Flash Point: 212.5 °C
Enthalpy of Vaporization: 68.28 kJ/mol
Boiling Point: 427.8 °C at 760 mmHg
Vapour Pressure: 1.6E-07 mmHg at 25°C
Storage temp: 0-6°C
Appearance: Pyributicarb (CAS NO. 88678-67-5) is pure white crystalline solid
Solubility: Solubility (20 °C): Water 0.32mg / L, the solubility in organic solvents (g / L): acetone 780, methanol 28, ethanol 33, chloroform 390, xylene 580, ethyl acetate 560.

Uses

Pyributicarb (CAS NO. 88678-67-5) is a thio-carbamate herbicides,which has high herbicidal activityon annual grass weeds , especially in the bud or postgermination after application , has excellent effect on controlling in pyributicarb's growth.

Production

The reaction of 3-tert-butyl phenol and CSCl₂ to generate chloro-thio-carboxylic acid 3 - tert-butyl phenyl acetate, which then reacts with sodium carbonate and 2,6-dichloro-pyridine, obtaining 2-methoxy-6-methylamine pyridine dissolved in ethanol, reflux,derived Pyributicarb (CAS NO. 88678-67-5).

Toxicity Data With Reference

1.	orl-rat LD50:>5 g/kg	JPIFAN Japan Pesticide Information.(57)(1990),30.
2.	ihl-rat LC50:>6520 mg/m3/4H	JPIFAN Japan Pesticide Information.(57)(1990),30.
3.	skn-rat LD50:>5 g/kg	JPIFAN Japan Pesticide Information.(57)(1990),30.
4.	ipr-rat LD50:>5 g/kg	NNGADV Nippon Noyaku Gakkaishi. 15 (1990),503.
5.	scu-rat LD50:>5 g/kg	NNGADV Nippon Noyaku Gakkaishi. 15 (1990),503.
6.	orl-mus LD50:>5 g/kg	JPIFAN Japan Pesticide Information.(57)(1990),30.
7.	skn-mus LD50:>5 g/kg	JPIFAN Japan Pesticide Information.(57)(1990),30.
8.	ipr-mus LD50:>5 g/kg	NNGADV Nippon Noyaku Gakkaishi. 15 (1990),503.
9.	scu-mus LD50:>5 g/kg	NNGADV Nippon Noyaku Gakkaishi. 15 (1990),503.

Safety Profile

Low toxicity by ingestion, inhalation, intraperitoneal, subcutaneous, and skin contact. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NO_x and SO_x.