Alkynes

Alkynes contain a highly versatile functional group that may be utilized for numerous reactions such as the Sonogashira coupling reaction and related Castro-Stephens reaction; electrophilic additions of hydrogen, halogens, hydrogen halides, or water; metathesis; hydroboration; oxidative cleavage; C–C coupling; and cycloadditions. Terminal alkynes may be transformed into metal acetylides and can then be submitted to nucleophilic substitution with alkyl halides to form new C–C bonds, or submitted to nucleophilic addition such as the Favorskii reaction. Alkyne building blocks with a second functionality are particularly useful in the Huisgen 1,3-dipolar cycloaddition of alkynes to organic azides. The second functional group allows the attachment of a molecule of interest that subsequently can be joined conveniently with the target azide.

To view a list of products filtered by type, simply click on the "+" sign on the type column and make your selection of internal or terminal alkynes. Alternatively, you can browse through all available alkynes in the table immediately below.

Learn More about Alkynes
Alkynes
Alkyne Hydration
Ynamides

Product #

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Description

Molecular Formula

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249572 Sodium acetylide suspension 18 wt. % slurry in xylene: light mineral oil, 95% (Purity of contained acetylide) Terminal
C2HNa
81831 Propargyl bromide solution purum, ~80% in toluene Terminal
C3H3Br
P51001 Propargyl bromide solution 80 wt. % in toluene, contains 0.3% magnesium oxide as stabilizer Terminal
C3H3Br
530409 Propargyl bromide solution 80 wt. % in xylene Terminal
C3H3Br
143995 Propargyl chloride 98% Terminal
C3H3Cl
384321 Propargyl chloride solution 70 wt. % in toluene Terminal
C3H3Cl
P50803 Propargyl alcohol 99% Terminal
C3H4O
81825 Propargylamine purum, ≥98.0% (GC) Terminal
C3H5N
P50900 Propargylamine 98% Terminal
C3H5N
P50919 Propargylamine hydrochloride 95% Terminal
C3H5N · HCl
738271   3-Butynoic acid 95% Terminal
C4H4O2
690643 3-Bromo-1-butyne technical, ≥90% (GC) Terminal
C4H5Br
675725 4-Bromo-1-butyne 97% Terminal
C4H5Br
728233 4-Chloro-2-butyn-1-ol ≥95.0% (GC) Internal
C4H5ClO
254339 2-Butyne 99% Internal
C4H6
244341 2-Butyn-1-ol 98% Internal
C4H6O
130850 3-Butyn-1-ol 97% Terminal
C4H6O
447986 3-Butyn-2-ol 97% Terminal
C4H6O
271365 Ethoxyacetylene solution ~40 wt. % in hexanes Terminal
C4H6O
177199 Methyl propargyl ether ≥97% Terminal
C4H6O
B103209 2-Butyne-1,4-diol 99% Internal
C4H6O2
687103 1-Amino-4-chloro-2-butyne hydrochloride 90% Internal
C4H7Cl2N
715190 1-Amino-3-butyne 95% Terminal
C4H7N
150223 N-Methylpropargylamine 95% Terminal
C4H7N
M32801 2-Methyl-1-buten-3-yne 99% Terminal
C5H6
663018 Cyclopropylacetylene Neat, 97% Terminal
C5H6
563374 Cyclopropylacetylene solution 70 wt. % in toluene Terminal
C5H6
662909 2-Pentynoic acid 97% Internal
C5H6O2
728594 5-Iodo-1-pentyne ≥98.0% (GC) Terminal
C5H7I
256560 1-Pentyne 99% Terminal
C5H8
271357 2-Pentyne 98% Internal
C5H8
745723 3-Methyl-1-butyne 95% Terminal
C5H8
E28404 1-Pentyn-3-ol 98% Terminal
C5H8O
66120 2-Methyl-3-butyn-2-ol purum, ≥99.0% (GC) Terminal
C5H8O
129763 2-Methyl-3-butyn-2-ol 98% Terminal
C5H8O
335312 2-Pentyn-1-ol 98% Internal
C5H8O
208698 3-Pentyn-1-ol 97% Internal
C5H8O
77056 3-Pentyn-2-ol ≥98.0% (GC) Internal
C5H8O
302481 4-Pentyn-1-ol 97% Terminal
C5H8O
268992 4-Pentyn-2-ol ≥98% Terminal
C5H8O
687189 2-Methyl-3-butyn-2-amine 95% Terminal
C5H9N
143065 3-Dimethylamino-1-propyne 97% Terminal
C5H9N
779407 4-Pentyn-1-amine ≥92.0% Terminal
C5H9N
218170 Ethynyltrimethylsilane 98% Terminal
C5H10Si
416967 Propargyl ether 98% Terminal
C6H6O
52490 2,4-Hexadiyne-1,6-diol ≥98.0% (GC) Internal
C6H6O2
745731 Dipropargylamine 97% Terminal
C6H7N
763659 3-(Allyloxy)-1-propyne 97% Terminal
C6H8O
493023 3-Methyl-1-penten-4-yn-3-ol 98% Terminal
C6H8O
707708 5-Hexen-2-yn-1-ol 97% Internal
C6H8O
757632 6-Iodo-1-hexyne 97% Terminal
C6H9I
244422 1-Hexyne 97% Terminal
C6H10
293911 2-Hexyne 99% Internal
C6H10
244392 3,3-Dimethyl-1-butyne 98% Terminal
C6H10
306894 3-Hexyne 99% Internal
C6H10
533882 4-Methyl-1-pentyne 98% Terminal
C6H10
649082 4-Methyl-2-pentyne 96% Internal
C6H10
537764 1-Hexyn-3-ol 90%, technical grade Terminal
C6H10O
630829 2-Hexyn-1-ol 97% Internal
C6H10O
244430 3-Hexyn-1-ol 98% Internal
C6H10O
669296 3-Hexyn-2-ol 97% Internal
C6H10O
137561 3-Methyl-1-pentyn-3-ol 98% Terminal
C6H10O
302015 5-Hexyn-1-ol 96% Terminal
C6H10O
667021 5-Hexyn-3-ol 97% Terminal
C6H10O
475335 1,4-Dimethoxy-2-butyne 97% Internal
C6H10O2
377775 3-Bromo-1-(trimethylsilyl)-1-propyne 98% Internal
C6H11BrSi
756830 3-Methyl-1-pentyn-3-amine hydrochloride 97% Terminal
C6H11N · HCl
318558 3-(Trimethylsilyl)propargyl alcohol 99% Internal
C6H12OSi
374423 3-Trimethylsiloxy-1-propyne 98% Terminal
C6H12OSi
244481 1-(Trimethylsilyl)propyne 99% Internal
C6H12Si
376264 Trimethyl(propargyl)silane contains 500 ppm BHT as stabilizer Terminal
C6H12Si
407437 1,6-Heptadiyne 97% Terminal
C7H8
483125 2-Methyl-1-hexen-3-yne 97% Internal
C7H10
650331 Cyclopentylacetylene 90% Terminal
C7H10
130869 1-Ethynylcyclopentanol 98% Terminal
C7H10O
708771 6-Hepten-3-yn-1-ol 97% Internal
C7H10O
244414 1-Heptyne 98% Terminal
C7H12
388602 2-Heptyne 98% Internal
C7H12
388610 3-Heptyne 97% Internal
C7H12
662887 3-Methyl-1-hexyne technical grade Terminal
C7H12
662860 5-Methyl-1-hexyne 97% Terminal
C7H12
666963 1-Heptyn-3-ol 97% Terminal
C7H12O
630810 2-Heptyn-1-ol 97% Internal
C7H12O
723800 3-Ethyl-1-pentyn-3-ol 98.0% Terminal
C7H12O
630845 3-Heptyn-1-ol 98% Internal
C7H12O
666971 5-Methyl-1-hexyn-3-ol 97% Terminal
C7H12O
418676 4-(Trimethylsilyl)-3-butyn-2-one 97% Internal
C7H12OSi
303607 3,3-Diethoxy-1-propyne 97% Terminal
C7H12O2
632031 3-(Trimethylsilyloxy)-1-butyne 97% Terminal
C7H14OSi
666955 4-(Trimethylsilyl)-3-butyn-2-ol 97% Internal
C7H14OSi
672890 3,4-Dichlorophenylacetylene 97% Terminal
C8H4Cl2
672882 3,4-Difluorophenylacetylene 90% Terminal
C8H4F2
728276 (Bromoethynyl)benzene ≥95.0% (HPLC) Internal
C8H5Br
728241 (Chloroethynyl)benzene ≥95.0% (HPLC) Internal
C8H5Cl
728268 (Iodoethynyl)benzene ≥97.0% (HPLC) Internal
C8H5I
519294 1-Ethynyl-4-nitrobenzene 97% Terminal
C8H5NO2
77840 Phenylacetylene purum, ≥97.0% (GC) Terminal
C8H6
117706 Phenylacetylene 98% Terminal
C8H6
632023 3-Hydroxyphenylacetylene ≥95.0% Terminal
C8H6O
597651 2-Ethynylaniline 98% Terminal
C8H7N
498289 3-Ethynylaniline ≥98% Terminal
C8H7N
481122 4-Ethynylaniline 97% Terminal
C8H7N
161292 1,7-Octadiyne 98% Terminal
C8H10
316571 1-Ethynylcyclohexene 99% Terminal
C8H10
632074 3-Cyclopentyl-1-propyne 97% Terminal
C8H12
129216 Cyclohexylacetylene 98% Terminal
C8H12
E51406 1-Ethynyl-1-cyclohexanol ≥99% Terminal
C8H12O
708534 2-Methyl-6-hepten-3-yn-2-ol 97% Internal
C8H12O
177024 1-Ethynylcyclohexylamine 98% Terminal
C8H13N
244465 1-Octyne 97% Terminal
C8H14
244473 4-Octyne 99% Internal
C8H14
127280 1-Octyn-3-ol 96% Terminal
C8H14O
556084 1-Vinyl cyclohexanol 97% Terminal
C8H14O
630837 2-Octyn-1-ol 97% Internal
C8H14O
278394 3,5-Dimethyl-1-hexyn-3-ol 98% Terminal
C8H14O
545430 3-Octyn-1-ol 97% Internal
C8H14O
667056 4-Methyl-1-heptyn-3-ol 97% Terminal
C8H14O
495239 [(1,1-Dimethyl-2-propynyl)oxy]trimethylsilane 98% Terminal
C8H16OSi
650315 5-(Trimethylsilyl)-4-pentyn-1-ol 96% Internal
C8H16OSi
399264 (tert-Butyldimethylsilyl)acetylene 99% Terminal
C8H16Si
346977 (Triethylsilyl)acetylene 97% Terminal
C8H16Si
92784 1-(Trimethylsilyl)-1-pentyne purum, ≥98.0% (GC) Internal
C8H16Si
376175 1-(Trimethylsilyl)-1-pentyne 98% Internal
C8H16Si
687286 1-Dimethylamino-3-(trimethylsilyl)-2-propyne 96% Internal
C8H17NSi
187437 Bis(trimethylsilyl)acetylene 99% Internal
C8H18Si2
672858 4-(Trifluoromethoxy)phenylacetylene 97% Terminal
C9H5F3O
672645 3-Phenyl-2-propynenitrile 98% Internal
C9H5N
728187 1-Phenyl-2-propyn-1-one ≥95.0% (HPLC) Internal
C9H6O
725021 3-Ethynylbenzaldehyde 97% Terminal
C9H6O
728209 (3-Bromo-1-propynyl)benzene solution ~75% in toluene Internal
C9H7Br
664960 3-Chloro-1-phenyl-1-propyne 97% Internal
C9H7Cl
161241 1-Phenyl-1-propyne 99% Internal
C9H8
558788 2-Ethynyltoluene 97% Terminal
C9H8
521140 3-Ethynyltoluene 97% Terminal
C9H8
376841 3-Phenyl-1-propyne contains ca.250 ppm BHT as inhibitor, 97% Terminal
C9H8
206504 4-Ethynyltoluene 97% Terminal
C9H8
226610 1-Phenyl-2-propyn-1-ol 98% Terminal
C9H8O
467227 2-Ethynylanisole 97% Terminal
C9H8O
520039 2-Ethynylbenzyl alcohol 95% Terminal
C9H8O
519413 3-Ethynylanisole 96% Terminal
C9H8O
589306 3-Phenyl-2-propyn-1-ol 96% Internal
C9H8O
206490 4-Ethynylanisole 97% Terminal
C9H8O
519235 4-Ethynylbenzyl alcohol 97% Terminal
C9H8O
78960 Phenyl propargyl ether technical, ≥90% (GC) Terminal
C9H8O
T84964 Tripropargylamine 98% Terminal
C9H9N
720356 3-Phenyl-2-propyn-1-amine hydrochloride 97% Internal
C9H10ClN
161306 1,8-Nonadiyne 98% Terminal
C9H12
632066 3-Cyclohexyl-1-propyne 97% Terminal
C9H14
253871 1-Nonyne 99% Terminal
C9H16
513695 N-tert-Butyl-1,1-dimethylpropargylamine 97% Terminal
C9H17N
495492 tert-Butyldimethyl(2-propynyloxy)silane 97% Terminal
C9H18OSi
348007 1-Trimethylsilyl-1-hexyne 99% Internal
C9H18Si
632104 1,3-Diethynylbenzene 97% Terminal
C10H6
632090 1,4-Diethynylbenzene 96% Terminal
C10H6
553298 1,1,1-Trifluoro-2-phenyl-3-butyn-2-ol 96% Terminal
C10H7F3O
648949 2-(2-Fluorophenyl)-3-butyn-2-ol 96% Terminal
C10H9FO
648930 2-(3-Fluorophenyl)-3-butyn-2-ol 90% Terminal
C10H9FO
648922 2-(4-Fluorophenyl)-3-butyn-2-ol 90% Terminal
C10H9FO
558893 1-Ethyl-4-ethynylbenzene 98% Terminal
C10H10
341797 1-Phenyl-1-butyne 99% Internal
C10H10
521116 2-Ethynyl-1,4-dimethylbenzene 97% Terminal
C10H10
632058 4-Phenyl-1-butyne 97% Terminal
C10H10
521191 1-Ethynyl-4-methoxy-2-methylbenzene 97% Terminal
C10H10O
212997 2-Phenyl-3-butyn-2-ol ≥98% Terminal
C10H10O
669288 4-Phenyl-3-butyn-2-ol 97% Internal
C10H10O
588520 1-Ethynyl-3,5-dimethoxybenzene 98% (CP) Terminal
C10H10O2
701351 1-(Methylamino)-3-phenyl-2-propyne technical grade Internal
C10H11N
592609 4-Ethynyl-N,N-dimethylaniline 97% Terminal
C10H11N
399256 (Dimethylphenylsilyl)acetylene 98% Terminal
C10H12Si
452785 1-(Dimethylsilyl)-2-phenylacetylene 97% Internal
C10H12Si
CDS000657 1,4-Decadiyne AldrichCPR Internal
Terminal
C10H14
CDS000098 1,5-Decadiyne AldrichCPR Internal
Terminal
C10H14
712221 Boc-propargyl-Gly-OH ≥98.0% (HPLC) Terminal
C10H15NO4
244384 1-Decyne 98% Terminal
C10H18
545449 5-Decyne 98% Internal
C10H18
669229 2-Decyn-1-ol 97% Internal
C10H18O
422754 3-Decyn-1-ol 97% Terminal
C10H18O
545457 5-Decyn-1-ol 97% Internal
C10H18O
01095 Bis(trimethylsilyl) acetylenedicarboxylate ≥98.0% Internal
C10H18O4Si2
263567 1,4-Bis(trimethylsilyl)butadiyne 98%, stable crystalline form of butadiyne Internal
C10H18Si2
514934 N-tert-Amyl-1,1-dimethylpropargylamine 98% Terminal
C10H19N
667579 2-tert-Butyldimethylsiloxybut-3-yne 97% Terminal
C10H20OSi
541672 4-(tert-Butyldimethylsilyloxy)-1-butyne 97% Terminal
C10H20OSi
696072 N-Propargylphthalimide 97% Terminal
C11H7NO2
805580 3-(2-phenylethynyl)-2-oxazolidinone Ynamides
C11H9NO2
709514 1-Phenyl-4-penten-1-yne 97% Internal
C11H10
521132 1-Ethynyl-2,4,5-trimethylbenzene 97% Terminal
C11H12
CDS001444 1-Phenyl-1-pentyne AldrichCPR Internal
C11H12
CDS001437 5-Phenyl-1-pentyne AldrichCPR Terminal
C11H12
669261 1-Phenyl-1-pentyn-3-ol 97% Internal
C11H12O
728578 (RS)-1-Methyl-2-propynyl p-toluenesulfonate 95% Terminal
C11H12O3S
M74253 N-Methyl-N-propargylbenzylamine 97% Terminal
C11H13N
338923 1-Phenyl-2-trimethylsilylacetylene 99% Internal
C11H14Si
510963 2-[(Trimethylsilyl)ethynyl]aniline 97% Internal
C11H15NSi
686360 4-[(Trimethylsilyl)ethynyl]aniline 96% Internal
C11H15NSi
805602 3-(1-octyn-1-yl)-2-oxazolidinone Ynamides
C11H17NO2
714232 (R)-2-(Boc-amino)-5-hexynoic acid ≥96% (HPLC) Terminal
C11H17NO4
668044 9-Undecynoic acid 90% Internal
C11H18O2
CDS001229 1-Undecyne AldrichCPR Terminal
C11H20
94195 10-Undecyn-1-ol ≥95.0% (GC) Terminal
C11H20O
668338 9-Undecyn-1-ol 90% Internal
C11H20O
595799 1-Chloro-5-triethylsilyl-1-pentyne 97% Terminal
C11H21ClSi
697621 [(Triisopropylsilyl)acetylene]sulfur pentafluoride 95% Internal
C11H21F5SSi
360031 (Triisopropylsilyl)acetylene 97% Terminal
C11H22Si
759759 1,3,5-Triethynylbenzene 97% Terminal
C12H6
557927 1-Ethynylnaphthalene 97% Terminal
C12H8
805599 1-(2-phenylethynyl)-2-pyrrolidinone Ynamides
C12H11NO
683922 3-[(Trimethylsilyl)ethynyl]benzonitrile 97% Internal
C12H13NSi
521086 1-Butyl-4-ethynylbenzene 95% Terminal
C12H14
363499 1-Phenyl-1-hexyne 99% Internal
C12H14
593001 4-tert-Butylphenylacetylene 96% Terminal
C12H14
669245 1-Phenyl-1-hexyn-3-ol 97% Internal
C12H14O
669253 1-Phenyl-4-methyl-1-pentyn-3-ol 97% Internal
C12H14O
709727 3-(Trimethylsilyl)ethynylbenzaldehyde 95% Internal
C12H14OSi
686379 4-[(Trimethylsilyl)ethynyl]benzoic acid Internal
C12H14O2Si
569321 (3-Methoxyphenylethynyl)trimethylsilane 97% Internal
C12H16OSi
563420 (4-Methoxyphenylethynyl)trimethylsilane 97% Internal
C12H16OSi
666998 1-Phenyl-3-(trimethylsilyl)-2-propyn-1-ol 97% Internal
C12H16OSi
668273 4-(Trimethylsilylethynyl)benzyl alcohol 97% Internal
C12H16OSi
560863 2-[(Trimethylsilyl)ethynyl]toluene 97% Internal
C12H16Si
363669 2,2,7,7-Tetramethyl-3,5-octadiyne 99% Internal
C12H18
550477 3,9-Dodecadiyne 97% Internal
C12H18
244406 1-Dodecyne 98% Terminal
C12H22
360996 1-(Triisopropylsilyl)-1-propyne 98% Internal
C12H24Si
632635 2-Ethynyl-6-methoxynaphthalene 97% Terminal
C13H10O
682764 3-(1-Naphthyl)-2-propyn-1-ol 96% Internal
C13H10O
457477 1-Ethynyl-4-pentylbenzene 97% Terminal
C13H16
588504 1-[(Trimethylsilyl)ethynyl]-3,5-dimethoxybenzene 97% Internal
C13H18O2Si
563455 (4-Ethylphenylethynyl)trimethylsilane 97% Internal
C13H18Si
521175 4-Ethynylbiphenyl 97% Terminal
C14H10
D204803 Diphenylacetylene 98% Internal
C14H10
521213 1-Ethynyl-4-phenoxybenzene 97% Terminal
C14H10O
CDS000275 1-Ethynyl-4-hexylbenzene AldrichCPR Terminal
C14H18
87197 1-Tetradecyne ≥97.0% Terminal
C14H26
480193 Bis(triethylsilyl)acetylene 97% Internal
C14H30Si2
477443 1,1-Diphenyl-2-propyn-1-ol 99% Terminal
C15H12O
669237 1,3-Diphenyl-2-propyn-1-ol 90% Internal
C15H12O
399221 (Methyldiphenylsilyl)acetylene 99% Terminal
C15H14Si
563412 1-(1-Naphthyl)-2-(trimethylsilyl)acetylene 97% Internal
C15H16Si
694452 10-(2-Tetrahydropyranyloxy)-8-decynoic acid 85% Internal
C15H24O4
76575 1-Pentadecyne ≥97.0% Terminal
C15H28
161233 1,4-Diphenylbutadiyne 99% Internal
C16H10
521167 9-Ethynylphenanthrene 97% Terminal
C16H10
728195 1,4-Diphenyl-2-butyne-1,4-dione ≥95.0% (HPLC) Internal
C16H10O2
633356 (6-Methoxynaphthalen-2-ylethynyl)trimethylsilane 97% Internal
C16H18OSi
462179 1,4-Bis[(trimethylsilyl)ethynyl]benzene 98% Internal
C16H22Si2
805564 (R)-4-Phenyl-3-(2-phenylethynyl)oxazolidin-2-one Ynamides
C17H13NO2
559350 1,4-Bis(trifluoromethyl)-1,4-diphenyl-2-butyn-1,4-diol Internal
C18H12F6O2
42655 1,6-Diphenoxy-2,4-hexadiyne ≥98.0% Internal
C18H14O2
360058 (Triphenylsilyl)acetylene 98% Terminal
C20H16Si
115002 1,1,3-Triphenylpropargyl alcohol Internal
C21H16O
805572 4-methyl-N-(2-phenylethynyl)-N-(phenylmethyl)-benzenesulfonamide Ynamides
C22H19NO2S
718351 S,S′-[1,4-Phenylenebis(2,1-ethynediyl-4,1-phenylene)]bis(thioacetate) 97% (HPLC) Internal
C26H18O2S2