2-Pyridinecarboxylicacid, 4-amino-3,5,6-trichloro-

NCI Carcinogenesis Bioassay (feed); No Evidence: mouse NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-23 ,1978. ; Clear Evidence: rat NCITR*    National Cancer Instit   ute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-23 ,1978. .

OSHA PEL: TWA Total Dust: 10 mg/m³; Respirable Fraction: 5 mg/m³
ACGIH TLV: TWA 10 mg/m³; Not Classifiable as a Human Carcinogen

The Picloram, with the CAS registry number 1918-02-1, is also known as 4-Amino-3,5,6-trichloropicolinic acid. It belongs to the product category of Insect Hormone. Its EINECS registry number is 217-636-1. Its IUPAC name is called 4-amino-3,5,6-trichloropyridine-2-carboxylic acid. This chemical's classification codes are Agricultural Chemical; Herbicide; Herbicides; Mutation data; Pesticides; Reproductive Effect; Tumor data. You should keep the bottle tightly closed (0-6°C)

Physical properties of Picloram: (1)ACD/LogP: 2.94; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.07; (4)ACD/LogD (pH 7.4): -0.21; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 4; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 2; (12)Index of Refraction: 1.676; (13)Molar Refractivity: 50.19 cm3; (14)Molar Volume: 133.3 cm3; (15)Surface Tension: 78.6 dyne/cm; (16)Density: 1.811 g/cm3; (17)Melting Point: 200 °C (dec.)(lit.); (18)Flash Point: 208.1 °C; (19)Enthalpy of Vaporization: 71.1 kJ/mol; (20)Boiling Point: 420.5 °C at 760 mmHg; (21)Vapour Pressure: 8E-08 mmHg at 25°C.

Preparation: this chemical can be prepared by 2,3,5-trichloro-6-trichloromethyl-pyridin-4-ylamine. This reaction will need reagent trichloroacetic acid, sulfuric acid and solvent H₂O. The reaction time is 10 hours with reaction temperature of 110 ℃. The yield is about 88.3%.

Uses of Picloram: Picloram is a systemic herbicide used for general woody plant control, sold under the trade names Tordon and Grazon. It also controls a wide range of broad-leaved weeds, but most grasses are resistant.Picloram can be sprayed on foliage, injected into plants, applied to cut surfaces, or placed at the base of the plant where it will leach to the roots.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause inflammation to the skin or other mucous membranes. It is irritating to eyes. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1(=C(C(=NC(=C1Cl)Cl)C(=O)O)Cl)N
(2)InChI: InChI=1S/C6H3Cl3N2O2/c7-1-3(10)2(8)5(9)11-4(1)6(12)13/h(H2,10,11)(H,12,13)
(3)InChIKey: NQQVFXUMIDALNH-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
duck	LD50	oral	> 2gm/kg (2000mg/kg)		Down to Earth. Vol. 35, Pg. 25, 1979.
rabbit	LD50	oral	2gm/kg (2000mg/kg)		Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 414, 1973.
rabbit	LD50	skin	> 4gm/kg (4000mg/kg)		World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat	LD50	oral	8200mg/kg (8200mg/kg)		Down to Earth. Vol. 35, Pg. 25, 1979.