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piproctanyl bromide
Editor	I.G. Ferris
Entity code	PIBRO
CAS registry No.	56717-11-4
Family	Piperidines
Functions	Plant Growth Regulator
Chemical name	1-allyl-1-(3,7-dimethyloctyl)piperidinium bromide (IUPAC) (EN)
Synonyms
Trade names	Alden (Maag); Stemtrol (Maag)
Other names
Last updated	20/5/2003

Fate
Animals: In mammals, following oral administration, piproctanyl bromide is eliminated largely unchanged in the faeces.

Toxicology
Mammals: Acute oral LD50 for rats 820-990, mice 182 mg/kg. Acute percutaneous LD50 for rats 115-240 mg/kg. Non-irritating to skin (guinea pigs) and eyes (rabbits). Acute inhalation LC50 for rats 1.5 mg/l air. In 90-day feeding trials, rats recieving 150 mg/kg/day and dogs receiving 25 mg/kg/day showed no significant ill-effects. Birds: Eight-day dietary LC50 for mallard ducks and bobwhite quail >10,000 mg/kg diet. Fish: LC50 (96 hours) for rainbow trout 12.7, bluegill sunfish 62 mg/l. Bees: Not toxic to bees.

Detection

Sampling

Methods

MRLs

Uses

Mode of action: Plant growth regulator, absorbed by the leaves and roots, but not readily translocated between shoots. Inhibits elongation of internodes, and shortens and stiffens stems and peduncles.

Uses: Inhibition of longitudinal growth (to produce more compact and sturdier plants) in ornamentals, especially chrysanthemums, but also azaleas, fuchsias, petunias, and calceolarias.

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Mode of action

Ecotoxicology

Plant metabolism & residues

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