methyl orange


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Related to methyl orange: phenolphthalein, Methyl red

orange

 [or´anj]
1. the trees Citrus aurantium and Citrus sinensis or their fruits; the flowers and peels are used in pharmaceutical preparations.
2. a color between red and yellow, produced by energy of wavelengths between 590 and 630 nm..
3. a dye or stain with this color.
methyl orange an orange-yellow aniline dye, used as an indicator with a pH range of 3.2–4.4 and a color change from pink to yellow.

meth·yl or·ange

(meth'il ōr'enj),
A weakly acid dye used as a pH indicator (red at 3.2, yellow at 4.4).
Synonym(s): helianthine

methyl orange

A dye used as a pH indicator.
CAS # 547-58-0
See also: methyl

methyl

the monovalent radical, −CH3.

methyl alcohol
see methyl alcohol.
methyl bromide
a soil and grain fumigant. Poisoning by this compound causes incoordination and somnolence. Called also bromoethane.
methyl carbamate
methyl demeton
an organophosphorus insecticide. Called also methyl systox, oxydemeton-methyl.
methyl harmane (3-methyl)
carboline toxin found in plants.
methyl hydroxybenzoate
methyl p-hydroxybenzoate
a sex pheromone in the vaginal secretions of the bitch in estrus; it stimulates mounting behavior in dogs.
methyl orange
an orange-yellow aniline dye, used as an indicator with a pH range of 3.2-4.4 and a color change from pink to yellow.
methyl parathion
a very toxic organophosphorus insecticide.
methyl red test
a biochemical test for identification of enterobacteria.
methyl salicylate
a natural or synthetic wintergreen oil, used as a topical analgesic and as a clearing agent when mounting parasites. Called also oil of sweet birch.
methyl systox
see methyl demeton (above).