spongotine
A bis(indolyl)imidazole alkaloid containing bromine derived from sponges, spongotine-B: (6-bromo-1H-indol-3-yl)-[5-(1H-indol-3-yl)-4,5-dihydro-1H-imidazol-2-yl]methanone (spongotine A has bromine in another position and spongotine C has two bromine atoms.

sponin
Misspelling of saponin.

spraydrift
The unintentional diffusion of sprayed pesticide onto neighbouring land.

sprengerinin
A particular steroid glycoside.

squalene
A linear triterpene hydrocarbon found in shark liver oil and in human sebum; it plays a role in the biosynthesis of steroids.

squalenes
plural of squalene

squalenoyl
A univalent radical derived from squalenoic acid

squamosin
An acetogenin found in Annona squamosa.

squaramide
The amide of squaric acid

squarate
Any salt or ester of squaric acid.

squarates
plural of squarate

squarylium
An aromatic quaternary ammonium cation, derived from squaric acid, that is the basis of some fluorescent dyes

squaryliums
plural of squarylium

stannabenzene
A heteroaromatic compound in which one or more carbon atoms of a benzene ring has been replaced by tin atoms.

stannabenzenes
plural of stannabenzene.

stannamyl
An organometallic radical or compound of tin and amyl groups.

stannate
Any salt of stannic acid.

stannates
plural of stannate

stannethyl
An organotin compound featuring ethyl radicals.

stannide
Any binary compound of tin and a more electropositive element; the tin anion in such a compound.

stannides
plural of stannide

stannole
An organotin compound with the formula (CH)₄SnH₂.

stannoxane
any compound formally derived from a siloxane by replacing each silicon atom with tin

stannoxanes
plural of stannoxane

stannylium
Any cation formed by a tin atom with three bonds, having the general formula R₃Sn⁺

stanol
Any saturated steroid alcohol, formed by hydrogenation of an appropriate sterol

stanolone
A particular androgenic steroid.

stanols
plural of stanol

stanone
Any steroid ketone related to a stanol

stanones
plural of stanone

stansioside
An iridoid glucoside found in Tecoma stans.

staphidine
A triterpenoid alkaloid 19,21-dihydro-21-methyl-staphimine present in Delphinium staphisagria

stauntoside
A particular steroid glycoside.

stavaroside
A particular steroid glycoside.

stearaldehyde
The aldehyde derived from stearic acid

stearamide
The acid amide of stearic acid

stearate
Any salt or ester of stearic acid.

stearates
plural of stearate

stearidonate
Any salt or ester of stearidonic acid

stearone
The ketone of stearic acid, obtained as a white crystalline substance, (C₁₇H₃₅)₂.CO, by the distillation of calcium stearate.

stearones
plural of stearone

stearoyl
The univalent radical derived from stearic acid by loss of the hydroxy group

stearoyls
plural of stearoyl

stearyl
The univalent radical CH₃(CH₂)₁₇- derived from stearyl alcohol

stearylamine
Synonym of octadecylamine.

stearyls
plural of stearyl

stenbolone
A particular anabolic steroid.

stentorin
A blue or green pigment found in some stentors (the protozoans). It is a photoreceptor

stentorins
plural of stentorin

stephalagine
An aporphine alkaloid present in the fruit of Annona crassiflora

stephanoside
A particular steroid glycoside.

sterane
A tetracyclic hydrocarbon related to the steroids

steranes
plural of sterane

stercobilin
A tetrapyrrolic bile pigment, one of the end products of heme catabolism, responsible for the brown colour of human faeces

sterculate
Any salt or ester of sterculic acid

sterculates
plural of sterculate

stereoparent
A parent compound whose name implies stereochemistry that need not be explicitly stated.

stereoparents
plural of stereoparent

sterol
Any steroid that contains a hydroxyl group in the 3-position of the A-ring.

sterols
plural of sterol

steryl
A univalent radical derived from a sterol

stethal
One of the higher alcohols of the methane series, homologous with cetyl alcohol (formerly called ethal), and found in small quantities as an ethereal salt of stearic acid in spermaceti.

stevioside
A glycoside, derived from the stevia plant, which can be used as a sweetener

steviosides
plural of stevioside

stibabenzene
An organometallic heterocyclic compound formally derived from benzene by substituting one carbon and hydrogen atom with antimony.

stibabenzenes
plural of stibabenzene

stibinin
An organometallic heterocyclic compound formally derived from benzene by substituting one carbon and hydrogen atom with antimony.

stibinine
An organometallic heterocyclic compound formally derived from benzene by substituting one carbon and hydrogen atom with antimony.

stibinines
plural of stibinine

stibinins
plural of stibinin

stibiolite
Obsolete name for the amorphous, pale yellow secondary antimony oxide now known as the mineral stibiconite.

stibmethyl
The organoantimony compound trimethylstibine.

stibole
A theoretical heterocyclic organic compound, a five-membered ring with the formula C₄H₄SbH.

stigmastane
The steroid hydrocarbon that is the parent compound of sitosterol

stigmastanes
plural of stigmastane

stigmastanol
A phytosterol found in a variety of plant sources

stigmasterin
Synonym of stigmasterol.

stigmasterol
A phytosterol that occurs in soybeans and similar plants

stigmasterols
plural of stigmasterol

stilbenolignan
A phenolic compound formed from a stilbenoid and a lignan.

stilbenolignans
plural of stilbenolignan

stovain
The hydrochloride of the benzoyl ester of 1-(dimethylaminomethyl)-1-methyl propanol, used, in solution with strychnine, as a local anaesthetic.

stovaine
Alternative form of stovain.

strangeonium
Any meson formed from a strange quark and its antiquark

strangeoniums
plural of strangeonium

strebloside
A particular steroid glycoside.

strictosamide
A particular alkaloid

stroboside
A particular steroid glycoside.

strombine
The derivative of alanine 2-(carboxymethylamino)propanoic acid

strophalloside
A particular steroid glycoside.

strophanin
A glucoside found in Strophanthus.

strophanolloside
A particular steroid glycoside.

strophanthojavoside
A particular steroid glycoside.

strophothevoside
A particular steroid glycoside.

strospeside
A particular steroid glycoside.

strychnate
Any salt or ester of strychnic acid

strychnates
plural of strychnate

strychnospermine
The alkaloid 1-[(12S,13R,16R,17S,18R,20S)-8-methoxy-16-methyl-15-oxa-1,11-diazahexacyclo[15.3.1.0^(4,12).0^(4,20).0^(5,10).0^(13,18)]henicosa-5(10),6,8-trien-11-yl]ethanone

stycerin
A triacid alcohol, related to glycerin, and obtained from certain styryl derivatives as a yellow, gummy, amorphous substance; phenyl glycerin.

styphnate
Any salt or ester of styphnic acid.

styphnates
plural of styphnate

styracin
A white crystalline substance extracted from gum storax, consisting of a salt of cinnamic acid with cinnamic alcohol.

styrene
An aromatic hydrocarbon; a colourless, oily liquid, used in the manufacture of polymers such as polystyrene.

styrenes
plural of styrene

styrenyl
A univalent radical derived from styrene

styrenyls
plural of styrenyl

styrone
A substance with a hyacinth-like odour, obtained by decomposition of styracin; cinnamic styryl alcohol.

styrones
plural of styrone

styryl
The univalent radical C₆H₅-CH=CH- derived from styrene

styrylquinoline
Any styryl derivative of a quinoline, but especially 2-styrylquinoline (2-(2-phenylethenyl)quinoline)

styrylquinolines
plural of styrylquinoline

styryls
plural of styryl

subacetate
An acetate containing an excess of the basic constituent.

subacetates
plural of subacetate

subalpinoside
A particular steroid glycoside.

subbacteriochlorin
A macrocyclic compound derived from bacteriochlorin by removing a quarter of the ring including a pyrrole group.

subchlorin
A macrocyclic compound derived from chlorin by removing one quarter of the ring with one pyrrole group.

subchlorins
plural of subchlorin

subdetector
A component of a compound detector

subdetectors
plural of subdetector

suberate
Any salt or ester of suberic acid.