phospholane
A saturated, five-membered heterocycle having four carbon atoms and one phosphorus atom; any derivative of this compound

phospholanes
plural of phospholane

phospholidine
Synonym of phospholane.

phospholipoid
A phospholipid or similar compound.

phospholipoids
plural of phospholipoid

phosphomethylpyrimidine
The biochemically-active compound (4-amino-2-methylpyrimidin-5-yl)methyl phosphate

phosphomevalonate
Any salt or anion of phosphomevalonic acid

phosphomevalonates
plural of phosphomevalonate

phosphomolybdate
Any salt of phosphomolybdic acid

phosphomolybdates
plural of phosphomolybdate

phosphomonoester
A monoester of phosphoric acid

phosphomonoesters
plural of phosphomonoester

phosphonite
Any organophosphorus compound of general formula (RO)₂(R^')P

phosphonites
plural of phosphonite

phosphonoacetate
A salt or ester of phosphonoacetic acid.

phosphonoacetates
plural of phosphonoacetate

phosphonoformate
Any salt of phosphonoformic acid

phosphonoformates
plural of phosphonoformate

phosphonopyruvate
Any salt or ester of phosphonopyruvic acid

phosphonopyruvates
plural of phosphonopyruvate

phosphonoselenoate
Any anion of the form R-O-PH(=O)-Se⁻

phosphonoselenoates
plural of phosphonoselenoate

phosphonothioate
Any anion of the form R-O-PH(=O)-S⁻ (or similar forms having the negative charge on the oxygen atom)

phosphonothioates
plural of phosphonothioate

phosphopantetheinyl
A univalent radical derived from phosphopantetheine

phosphopantheteinyl
A univalent radical derived from phosphopantheteine

phosphopantothenate
Any salt or ester of phosphopantothenic acid

phosphopantothenates
plural of phosphopantothenate

phosphopyruvate
phosphoenolpyruvate

phosphopyruvates
plural of phosphopyruvate

phosphoramide
any derivative of phosphoric acid in which each hydroxy group has been replaced with an amino or substituted amino group; P(=O)(NR₂)₃

phosphoramides
plural of phosphoramide

phosphorane
the hydride of phosphorus PH₅ and any of its hydrocarbyl derivatives

phosphoranes
plural of phosphorane

phosphoribosyl
the univalent radical derived from phosphoribose (ribose phosphate)

phosphoribosylglycinamide
The glycine-amide of 5-phosphoribosylamine that is an intermediate in the biosynthesis of purine

phosphoribosylpyrophosphate
Alternative form of phosphoribosyl pyrophosphate.

phosphoribosyls
plural of phosphoribosyl

phosphorocyanidate
Synonym of cyanophosphonate.

phosphorocyanidates
plural of phosphorocyanidate

phosphorodithioate
Synonym of dithiophosphate.

phosphorodithioates
plural of phosphorodithioate

phosphorothioate
A derivative of phosphate in which an oxygen atom is replaced with sulfur; especially such a variant of nucleic acid

phosphorothioates
plural of phosphorothioate

phosphorotrithioate
Any salt or ester of phosphorotrithioic acid

phosphorotrithioates
plural of phosphorotrithioate

phosphorthioate
Alternative form of phosphorothioate.

phosphorthioates
plural of phosphorthioate

phosphoryl
the trivalent radical O=P≡

phosphoryls
plural of phosphoryl

phosphoserine
An ester of serine and phosphoric acid, found in many proteins as the result of posttranslational modifications.

phosphoserines
plural of phosphoserine

phosphosilicate
A mixed salt containing phosphate and silicate

phosphosilicates
plural of phosphosilicate

phosphosugar
Any sugar (or higher carbohydrate) that is esterified with a phosphate group

phosphosugars
plural of phosphosugar

phosphosulfate
The univalent radical -OP(O₂H)-OSO₃H present in some nucleotides; it contains a high-energy sulfate bond

phosphosulfates
plural of phosphosulfate

phosphosulfolactate
The anion of 2-phosphonooxy-3-sulfopropanoic acid

phosphosulfolactates
plural of phosphosulfolactate

phosphosulphate
Alternative spelling of phosphosulfate.

phosphosulphates
plural of phosphosulphate

phosphothioate
Misspelling of phosphorothioate.

phosphothiol
The compound S=P(OH)₃

phosphotransacetylase
Synonym of phosphate acetyltransferase.

phosphotransacetylases
plural of phosphotransacetylase

phosphotransbutyrylase
Alternative form of phosphate butyryltransferase.

phosphotransmitter
Any compound, typically a protein, involved in phosphorelay

phosphotransmitters
plural of phosphotransmitter

phosphotriester
Any triester of phosphoric acid

phosphotriesters
plural of phosphotriester

phosphotungstate
A salt or ester of phosphotungstic acid.

phosphotungstates
plural of phosphotungstate

phosphotyrosyl
The univalent radical derived from phosphotyrosine

phosphuret
phosphide

phosphurets
plural of phosphuret

photoacceptor
A pigment that accepts a photon as the first stage in a photochemical reaction sequence

photoacceptors
plural of photoacceptor

photoacid
Any compound converted into a strong acid by photolysis.

photoacids
plural of photoacid

photocatalyser
Alternative form of photocatalyzer.

photocatalysers
plural of photocatalyser

photocatalyst
A substance that absorbs light and, in doing so, catalyzes a reaction.

photocatalysts
plural of photocatalyst

photocatalyzer
Synonym of photocatalyst.

photocatalyzers
plural of photocatalyzer

photocholesterol
An analogue of cholesterol in which the 5-6 double bond has been replaced by a photoactivatable diazirine group

photoderivative
Any derivative of a compound produced by a photochemical reaction

photoderivatives
plural of photoderivative

photogen
A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
A microorganism that produces phosphorescence.

photogene
A photograph.
An afterimage.

photogenes
plural of photogene

photogens
plural of photogen

photoinitiatior
Misspelling of photoinitiator.

photoinitiator
Any substance that initiates a chemical reaction by the absorption of a photon to form an excited state.

photoinitiators
plural of photoinitiator

photoinsecticide
An insecticide whose efficacy is improved with a photosensitizing agent

photoinsecticides
plural of photoinsecticide

photoion
A cation produced through photoionization

photoions
plural of photoion

photolyte
Any substance that is decomposed by photolysis

photolytes
plural of photolyte

photopigment
Any pigment that is unstable in the presence of light; used especially of the chromophore pigments in the rod cells and cone cells of the eye

photopigments
plural of photopigment

photopyrone
The ketone 3-hexyl-4-hydroxy-6-(2-methylpropyl)pyran-2-one (and related compounds) that at as quorum sensing signals in Photorhabdus

photopyrones
plural of photopyrone

photorhodopsin
The initial compound formed when rhodopsin is irradiated with light; it immediately produces bathorhodopsin

photosynthate
Any compound that is a product of photosynthesis.

photosynthates
plural of photosynthate

phoxim
An organophosphate insecticide used in veterinary medicine to treat ectoparasitic acarids.

phthalamide
The amide of phthalic acid

phthalate
Any salt or ester of a phthalic acid.

phthalates
plural of phthalate

phthalimide
The imide of phthalic acid, used in the manufacture of some plastics.

phthalimides
plural of phthalimide

phthalimido
The univalent radical derived from phthalimide by removing the imido hydrogen atom

phthaloyl
Any divalent radical derived from phthalic acid

phthalyl
Dated form of phthaloyl.

phthioceroldimycocerosate
phthiocerol dimycocerosate

phthor
fluorine

phycochrome
A bluish-green pigment in certain blue-green algae.

phycochromes
plural of phycochrome

phycocyanin
A pigment from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin, an accessory pigment to chlorophyll.

phycocyanine
Alternative form of phycocyanin.

phycocyanines
plural of phycocyanine

phycocyanins
plural of phycocyanin

phycophaein
A brown pigment found in addition to chlorophyll in the Phaeophyceae.

phycophaeine
Dated form of phycophaein.

phyllanthocin
The aglycon of the antileukemic glycoside phyllanthoside

phyllocyanin
A blue pigment obtained by degradation of chlorophyll.