Clopyralid , Analysis standard , 1702-17-6

Synonym(s):
3,6-Dichloro-pyridine-2-carboxylic acid

CAS NO.：1702-17-6

Empirical Formula: C6H3Cl2NO2

Molecular Weight: 192

MDL number: MFCD00078655

EINECS: 216-935-4

PRODUCT Properties

• Melting point: 151-152°C
• Boiling point: 0°C
• Density: 1.4313 (rough estimate)
• refractive index: 1.6100 (estimate)
• Flash point: 0°C
• storage temp.: Keep in dark place,Sealed in dry,Room Temperature
• solubility: DMSO: Slightly Soluble
• form: Solid
• pka: 2.02±0.25(Predicted)
• color: White to Light yellow to Light orange
• Water Solubility: 1.0 g/L
• Merck: 14,2400
• BRN: 473755
• LogP: 1.060
• CAS DataBase Reference: 1702-17-6(CAS DataBase Reference)
• EPA Substance Registry System: Clopyralid (1702-17-6)

Description and Uses

Clopyralid is an herbicide that selectively inhibits the growth of the broadleaf weed L. palustris over a panel of 17 New Zealand native non-broadleaf plant species when applied at a concentration of 1.5 mg/L. It does not inhibit growth of human pluripotent stem cells (IC₅₀ = >100 μM) or decrease nuclear translocation of the transcription factor SOX17, a marker of teratogenic risk. In vivo, clopyralid induces brain defects in rabbits, but not rats, when administered at a dose of 250 mg/kg.

Systemic post-emergence herbicide for use in food crops and mesquite.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H318
• Precautionary statements: P280-P305+P351+P338
• Hazard Codes: Xi;N,Xi,N,X
• Risk Statements: 41-51/53
• Safety Statements: 26-30-61-39
• RIDADR: UN 3077
• WGK Germany: 3
• RTECS: TJ7550700
• TSCA: Yes
• HazardClass: 9
• PackingGroup: III
• HS Code: 2933399990
• Hazardous Substances Data: 1702-17-6(Hazardous Substances Data)
• Toxicity: LD50 in male, female rats (mg/kg): >5000, 4300 orally; LC50 (96 hr) to rainbow trout: 103.5 mg/l (Brown, Uprichard)
• Limited Quantities: 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
• Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)