Agent Name

Picloram

Alternative Name

Tordon

CAS Number

1918-02-1

Formula

C6-H3-Cl3-N2-O2

Major Category

Pesticides

Synonyms

Tordon; 2-Pyridine carboxylic acid, 4-amino-3,5,6-trichloro-; 2-Pyridinecarboxylic acid, 4-amino-3,5,6-trichloro-; 3,5,6-Trichloro-4-aminopicolinic acid; 4-Amino-3,5,6-trichloro-2-picolinic acid; 4-Amino-3,5,6-trichloro-2-pyridinecarboxylic acid (9CI); 4-Amino-3,5,6-trichloropicolinic acid; 4-Amino-3,5,6-trichlorpicolinsaeure [German]; 4-Aminotrichloropicolinic acid; Amdon; Amdon grazon; Borolin; Grazon; K-Pin; Piclorame [ISO-French]; Tordon; Tordon 101 mixture; Tordon 10K; Tordon 22K; k-Pin; [ChemIDplus]

Category

Herbicides, Other

Description

Colorless to white crystals with a chlorine-like odor. [herbicide]; [NIOSH]

Sources/Uses

Used to control woody plants and broad-leaved weeds in range management programs; [EXTOXNET]

Comments

Classified as "slightly toxic," all formulations except Tordon RTU and Pathway may be used only by a certified applicator. There are no reports of human toxicity other than skin and respiratory irritation. [EXTOXNET] The following herbicides have an oral LD50 of >1 gm/kg and have little or no acute toxicity in humans: Alachlor, Amitrole, Ammonium sulfamate, Atrazine, Dalapon, Dicamba, Glyphosphate, Monuron, Oryzalin, Picloram, Propanil, Simazine, etc. [LaDou, p. 613]

Reference Link

EXTOXNET PIP - PICLORAM

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

10 mg/m3

PEL (OSHA)

15 mg/m3(total dust), 5 mg/m3(respirable fraction)

Explanatory Notes

VP is approximately zero. [CHEMINFO]

Reference Link

EPA Pesticide Chemical Search

Adverse Effects
IARC Carcinogen

Not Classifiable

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: