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HomeCarboxaldehydes / Acetals / Hemianimals

Carboxaldehydes / Acetals / Hemianimals


Aldehydes are organic compounds that contain terminal carbonyl functional group (formyl group). Hemiacetals and acetals are formed from and convertible to aldehydes when reacted with alcohols. Acetals are stable compared to hemiacetals, but their formation is a reversible equilibrium as with esters. Acetals are used in organic synthesis as protecting groups for carbonyl groups or diols. Glucose and many other aldoses exist as cyclic hemiacetals. Hemiaminals are a type of chemical compounds that have a hydroxyl group and an amine attached to the same carbon atom. They are intermediates in imine formation from an amine and a carbonyl compound.

Product nameStructureCAS#G-code
5-Acetoxymethyl-2-furaldehydeStructure of 5-Acetoxymethyl-2-furaldehyde[10551-58-3]GEO-00013
Newbeta-D-AllopyranoseStructure of beta-D-Allopyranose[7283-09-2]GEO-04660
NewL-AlloseStructure of L-Allose[39392-62-6]GEO-04661
NewL-AltroseStructure of L-Altrose[1949-88-8]GEO-04662
New1,6-Anhydro-b-D-glucopyranoseStructure of 1,6-Anhydro-b-D-glucopyranose[498-07-7]GEO-00235
New1,6-Anhydro-beta-D-glucose-2,3,4-tri-O-acetateStructure of 1,6-Anhydro-beta-D-glucose-2,3,4-tri-O-acetate[13242-55-2]GEO-04689
Benzofuran-2-carboxaldehydeStructure of Benzofuran-2-carboxaldehyde[4265-16-1]GEO-00272
1,3-Benzothiazole-6-carboxaldehydeStructure of 1,3-Benzothiazole-6-carboxaldehyde[19989-67-4]GEO-02723
1,3-Benzothiazole-2-carboxaldehydeStructure of 1,3-Benzothiazole-2-carboxaldehyde[6639-57-2]GEO-00278
Benzo[b]thiophene-2-carboxaldehydeStructure of Benzo[b]thiophene-2-carboxaldehyde[3541-37-5]GEO-00293
4-[Bis-(4-bromophenyl)amino]benzaldehydeStructure of 4-[Bis-(4-bromophenyl)amino]benzaldehyde[25069-38-9]GEO-00333
Bis(4-formylphenyl)phenylamineStructure of Bis(4-formylphenyl)phenylamine[53566-95-3]GEO-01071
2,2′-Bithienyl-5-carboxaldehydeStructure of 2,2'-Bithienyl-5-carboxaldehyde[3779-27-9]GEO-00371
5-Bromo-2,2′-bithienyl-5-carboxaldehydeStructure of 5-Bromo-2,2'-bithienyl-5-carboxaldehyde[110046-60-1]GEO-00396
5-Bromo-2-chloropyridine-3-carbaldehydeStructure of 5-Bromo-2-chloropyridine-3-carbaldehyde[228251-24-9]GEO-02911
5-(4-Bromo-2-fluorophenyl)furan-2-carbaldehydeStructure of 5-(4-Bromo-2-fluorophenyl)furan-2-carbaldehyde[444284-83-7]GEO-03640
3-Bromo-2-furaldehydeStructure of 3-Bromo-2-furaldehyde[14757-78-9]GEO-04281
5-Bromo-2-furaldehydeStructure of 5-Bromo-2-furaldehyde[1899-24-7]GEO-00459
4-Bromo-2-furaldehydeStructure of 4-Bromo-2-furaldehyde[21921-76-6]GEO-00457
6-Bromoindole-3-carboxaldehydeStructure of 6-Bromoindole-3-carboxaldehyde[17826-04-9]GEO-00485
3-Bromo-4-methylbenzaldehydeStructure of 3-Bromo-4-methylbenzaldehyde[36276-24-1]GEO-02926
4-Bromo-3-methylthiophene-2-carboxaldehydeStructure of 4-Bromo-3-methylthiophene-2-carboxaldehyde[30153-47-0]GEO-00515
3-Bromo-5-methylthiophene-2-carboxaldehydeStructure of 3-Bromo-5-methylthiophene-2-carboxaldehyde[36155-82-5]GEO-00514
5-(4-Bromophenyl)-2-furancarboxaldehydeStructure of 5-(4-Bromophenyl)-2-furancarboxaldehyde[20005-42-9]GEO-00551
3-Bromo-4-pyridinecarboxaldehydeStructure of 3-Bromo-4-pyridinecarboxaldehyde[70201-43-3]GEO-03429
6-Bromo-2-pyridinecarboxaldehydeStructure of 6-Bromo-2-pyridinecarboxaldehyde[34160-40-2]GEO-00567
5-Bromopyridine-2-carboxaldehydeStructure of 5-Bromopyridine-2-carboxaldehyde[31181-90-5]GEO-02483
2-Bromo-3-pyridinecarboxaldehydeStructure of 2-Bromo-3-pyridinecarboxaldehyde[128071-75-0]GEO-00566
5”-Bromo-2,2′-5′,2”-terthiophene-5-carboxaldehydeStructure of 5''-Bromo-2,2'-5',2''-terthiophene-5-carboxaldehyde[161726-69-8]GEO-00572
4-Bromo-2-thiophenecarboxaldehydeStructure of 4-Bromo-2-thiophenecarboxaldehyde[18791-75-8]GEO-00583
5-tert-Butyl-2-hydroxybenzaldehydeStructure of 5-tert-Butyl-2-hydroxybenzaldehyde[2725-53-3]GEO-02512
NewD(+)-CellobioseStructure of D(+)-Cellobiose[528-50-7]GEO-04676
NewD(+)-CellohexaoseStructure of D(+)-Cellohexaose[2478-35-5]GEO-04679
NewD(+)-Cello-oligosaccharidesStructure of D(+)-Cello-oligosaccharidesN/AGEO-04680
NewD(+)-CellopentaoseStructure of D(+)-Cellopentaose[2240-27-9]GEO-04681
NewD(+)-CellotetraoseStructure of D(+)-Cellotetraose[38819-01-1]GEO-04682
NewD-(+)-CellotrioseStructure of D-(+)-Cellotriose[33404-34-1]GEO-03839
4-Chloro-2-fluorobenzaldehydeStructure of 4-Chloro-2-fluorobenzaldehyde[61072-56-8]GEO-00680
2-Chloro-5-formylbenzoic acidStructure of 2-Chloro-5-formylbenzoic acid[1206625-81-1]GEO-02576
5-Chloro-2-furaldehydeStructure of 5-Chloro-2-furaldehyde[21508-19-0]GEO-00684
6-Chloro-5-hydroxypicolinaldehydeStructure of 6-Chloro-5-hydroxypicolinaldehyde[1211538-40-7]GEO-03656
4-Chloro-3-iodobenzaldehydeStructure of 4-Chloro-3-iodobenzaldehyde[276866-90-1]GEO-02514
2-Chloro-4-iodopyridine-3-carboxaldehydeStructure of 2-Chloro-4-iodopyridine-3-carboxaldehyde[153034-90-3]GEO-02628
2-Chloro-3-methoxybenzaldehydeStructure of 2-Chloro-3-methoxybenzaldehyde[54881-49-1]GEO-02917
5-(3-Chloro-4-methoxyphenyl)furfuralStructure of 5-(3-Chloro-4-methoxyphenyl)furfural[124014-00-2]GEO-02918
2-Chloro-4-methylbenzaldehydeStructure of 2-Chloro-4-methylbenzaldehyde[50817-80-6]GEO-00706
4-Chloro-3-methylbenzaldehydeStructure of 4-Chloro-3-methylbenzaldehyde[101349-71-7]GEO-00707
5-Chloro-2-thiophenecarboxaldehyde[7283-96-7]GEO-00804
4-[(2-Cyanoethyl)methylamino]benzaldehyde[94-21-3]GEO-02609
5-Cyano-2-thiophenecarboxaldehyde[21512-16-3]GEO-00851
1,2-O-Cyclohexylidene-a-D-xylo-pentodialdo-1,4-furanose dimer[15356-27-1]GEO-00870
Cyclopropanecarbaldehyde[1489-69-6]GEO-03694
New2-Deoxy-L-riboseStructure of 2-Deoxy-L-ribose[18546-37-7]GEO-00902
3,4-Dibromothiophene-2,5-dicarboxaldehyde[25373-20-0]GEO-00978
Diethyl 2,6-dimethyl-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)-1,4-dihydropyridine-3,5-dicarboxylateN/AGEO-03542
4-Difluoromethoxy-3-hydroxybenzaldehyde[151103-08-1]GEO-02629
2,3-Dihydro-2-oxo-1H-benzimidazole-5-carboxaldehyde[106429-59-8]GEO-04057
2,5-DihydroxybenzaldehydeStructure of 2,5-Dihydroxybenzaldehyde[1194-98-5]GEO-01098
2,6-DimethoxybenzaldehydeStructure of 2,6-Dimethoxybenzaldehyde[3392-97-0]GEO-01129
2-(Dimethylamino)-6-fluoro-4-methoxybenzaldehydeN/AGEO-03498
2-Dimethylamino-6-fluoro-4-methoxybenzaldehydeN/AGEO-02914
3,3′-Dimethyl-2,2′-bithiophenyl-5-carboxaldehyde[887407-04-7]GEO-01161
Dimethyl 2,6-dimethyl-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)-1,4-dihydropyridine-3,5-dicarboxylateN/AGEO-03548
(R)-(+)-2,2-Dimethyl-1,3-dioxolane-4-carboxaldehyde[15186-48-8]GEO-01173
(S)-(+)-2,2-Dimethyl-1,3-dioxolane-4-methanol[22323-82-6]GEO-01176
(R)-(-)-2,2-Dimethyl-1,3-dioxolane-4-methanol[14347-78-5]GEO-01175
(S)-(+)-2,2-Dimethyl-1,3-dioxolane-4-ylmethyl p-toluenesulfonate[23735-43-5]GEO-01179
(R)-(-)-2,2-Dimethyl-1,3-dioxolane-4-ylmethyl p-toluenesulfonate[23788-74-1]GEO-01178
(2,2-Dimethyl-[1,3]-dioxolan-4-yl)methylamine[22195-47-7]GEO-01182
(S)-(+)-(2,2-Dimethyl-[1,3]-dioxolan-4-yl)methylamine[82954-65-2]GEO-01181
(R)-(-)-(2,2-Dimethyl-[1,3]-dioxolan-4-yl)methylamine[103883-30-3]GEO-01180
4,5-Dimethyl-2-furaldehyde[52480-43-0]GEO-01189
2,2-Dimethyl-4-pentenal[5497-67-6]GEO-01206
2-(1,3-Dioxolan-2-yl)-6-methylpyridine[92765-75-8]GEO-01127
4-Diphenylaminobenzaldehyde[4181-05-9]GEO-01236
3-Ethoxymethacrolein[42588-57-8]GEO-04327
5-(Ethoxymethyl)-2-furaldehyde[1917-65-3]GEO-02730
5-Ethyl-2-furaldehyde[23074-10-4]GEO-01349
New7-Ethyl-5-methyl-6,8-dioxabicyclo[3.2.1]octaneStructure of 7-Ethyl-5-methyl-6,8-dioxabicyclo[3.2.1]octane[20290-99-7]GEO-04620
5-Ethyl-2-thiophenecarboxaldehyde[36880-33-8]GEO-01381
2-Fluoro-5-formylbenzoic acid[550363-85-4]GEO-03744
4-Formyl-3-hydroxybenzoic acid[619-12-5]GEO-01436
3-Furaldehyde[498-60-2]GEO-01440
2-Furaldehyde diethyl acetal[13529-27-6]GEO-01441
NewL-(-)-GalactoseStructure of L-(-)-Galactose[15572-79-9]GEO-01458
NewL-(-)-GlucoseStructure of L-(-)-Glucose[921-60-8]GEO-04663
NewL-Glycero-L-galacto-heptoseStructure of L-Glycero-L-galacto-heptose[20585-65-3]GEO-04671
NewD-Glycero-D-galacto-heptoseStructure of D-Glycero-D-galacto-heptose[5328-64-3]GEO-04670
NewL-Glycero-D-gluco-heptoseStructure of L-Glycero-D-gluco-heptose[84142-51-8]GEO-04673
NewD-Glycero-L-gluco-heptoseStructure of D-Glycero-L-gluco-heptose[23102-92-3]GEO-04672
NewD-glycero-D-talo-heptoseStructure of D-glycero-D-talo-heptose[10589-31-8]GEO-04674
NewL(+)-GuloseStructure of L(+)-Gulose[6027-89-0]GEO-04665
NewD-guloseStructure of D-Gulose[4205-23-6]GEO-04664
NewHeptasaccharide Glc4Xyl3Structure of Heptasaccharide Glc4Xyl3[121591-98-8]GEO-04683
5-Hydroxymethyl-2-furaldehydeStructure of 5-Hydroxymethyl-2-furaldehyde[67-47-0]GEO-01528
2-Hydroxy-5-nitrobenzaldehydeStructure of 2-Hydroxy-5-nitrobenzaldehyde[97-51-8]GEO-01539
2′-Hydroxy-3′-nitrobiphenyl-3-carboxylic acidStructure of 2'-Hydroxy-3'-nitrobiphenyl-3-carboxylic acid[376591-95-6]GEO-01542
4-(1H-Imidazol-1-yl)benzaldehydeStructure of 4-(1H-Imidazol-1-yl)benzaldehyde[10040-98-9]GEO-01579
2-IodobenzaldehydeStructure of 2-Iodobenzaldehyde[26260-02-6]GEO-01591
2-Iodo-4,5-dimethylbenzaldehydeStructure of 2-Iodo-4,5-dimethylbenzaldehyde[1094026-85-3]GEO-02919
1-Iodo-3,5-dinitrobenzeneStructure of 1-Iodo-3,5-dinitrobenzene[6276-04-6]GEO-01598
5-Iodo-2-furaldehydeStructure of 5-Iodo-2-furaldehyde[2689-65-8]GEO-01597
5-Iodo-2-methoxybenzaldehydeStructure of 5-Iodo-2-methoxybenzaldehyde[42298-41-9]GEO-04564
4-Iodo-2-methoxybenzaldehydeStructure of 4-Iodo-2-methoxybenzaldehyde[139102-37-7]GEO-03735
1,2-O-Isopropylidene-a-D-xylofuranoseStructure of 1,2-O-Isopropylidene-a-D-xylofuranose[20031-21-4]GEO-01624
NewD-(-)-LyxoseStructure of D-(-)-Lyxose[1114-34-7]GEO-01633
NewL-(+)-LyxoseStructure of L-(+)-Lyxose[1949-78-6]GEO-01634
NewL-(-)-MannoseStructure of L-(-)-Mannose[10030-80-5]GEO-04666
NewD-Melezitose monohydrateStructure of D-Melezitose monohydrate[10030-67-8]GEO-01645
NewD(+)-Melibiose monohydrateStructure of D(+)-Melibiose monohydrate[585-99-9]GEO-04677
4-Methoxy-3-methylbenzaldehydeStructure of 4-Methoxy-3-methylbenzaldehyde[32723-67-4]GEO-01749
3-Methoxy-4-methylbenzaldehydeStructure of 3-Methoxy-4-methylbenzaldehyde[24973-22-6]GEO-01691
5-(Methoxymethyl)furan-2-carboxaldehydeStructure of 5-(Methoxymethyl)furan-2-carboxaldehyde[1917-64-2]GEO-03173
5-(4-Methoxyphenyl)thiophene-2-carbaldehyde[38401-67-1]GEO-03577
3-Methoxy-2-thiophenecarboxaldehydeStructure of 3-Methoxy-2-thiophenecarboxaldehyde[35134-07-7]GEO-01731
NewMethyl 2,3-Anhydro-beta-D-ribopyranosideStructure of Methyl 2,3-Anhydro-beta-D-ribopyranoside[3150-13-8]GEO-04696
Methyl 2-Chloro-5-formylbenzoateStructure of Methyl 2-Chloro-5-formylbenzoate[199679-23-7]GEO-02577
(E)-Methyl 2-cyano-3-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)acrylateN/AGEO-03546
Methyl 2,2-dimethyl-1,3-dioxolane-4-carboxylateStructure of Methyl 2,2-dimethyl-1,3-dioxolane-4-carboxylate[108865-84-5]GEO-03987
New7-Methyl-1,6-dioxaspiro[4,5]decaneStructure of 7-Methyl-1,6-dioxaspiro[4,5]decane[73046-13-6]GEO-04621
3,4-(Methylenedioxy)thiophenolStructure of 3,4-(Methylenedioxy)thiophenol[5274-08-8]GEO-03999
5-MethylfurfuralStructure of 5-Methylfurfural[620-02-0]GEO-01838
3-O-Methyl-a-D-glucopyranoseStructure of 3-O-Methyl-a-D-glucopyranose[13224-94-7]GEO-01844
New4-O-Methyl-D-glucurono-D-xylanStructure of 4-O-Methyl-D-glucurono-D-xylan[9062-57-1]GEO-02501
1-Methyl-2-imidazolecarboxaldehydeStructure of 1-Methyl-2-imidazolecarboxaldehyde[13750-81-7]GEO-01857
1-Methylindole-3-carboxaldehydeStructure of 1-Methylindole-3-carboxaldehyde[19012-03-4]GEO-01854
4-Methyl-3-nitrobenzaldehydeStructure of 4-Methyl-3-nitrobenzaldehyde[31680-07-6]GEO-01891
5-Methyl-1-(perfluorophenyl)-1H-pyrrole-2-carbaldehydeStructure of 5-Methyl-1-(perfluorophenyl)-1H-pyrrole-2-carbaldehyde[]GEO-02528
6-Methyl-2-pyridinecarboxaldehydeStructure of 6-Methyl-2-pyridinecarboxaldehyde[1122-72-1]GEO-01923
N-Methylpyrrole-2-carboxaldehydeStructure of N-Methylpyrrole-2-carboxaldehyde[1192-58-1]GEO-01931
5-((5-Methyl-1,3,4-thiadiazol-2-yl)thio)furan-2-carbaldehydeN/AGEO-03520
4-Methyl-5-thiazolecarboxaldehydeStructure of 4-Methyl-5-thiazolecarboxaldehyde[82294-70-0]GEO-01943
3-Methylthiophene-2-carboxaldehydeStructure of 3-Methylthiophene-2-carboxaldehyde[5834-16-2]GEO-01955
5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehydeStructure of 5-(5-Methylthiophen-2-yl)thiophene-2-carbaldehyde[32358-94-4]GEO-01969
5-Nitro-2-furaldehydeStructure of 5-Nitro-2-furaldehyde[698-63-5]GEO-02008
Newp-Nitrophenyl 5-o-trans-Feruloyl-alpha-L-arabinofuranosideStructure of p-Nitrophenyl 5-o-trans-Feruloyl-alpha-L-arabinofuranoside[508220-79-9]GEO-04699
5-(4-Nitrophenyl)-2-furancarboxaldehydeStructure of 5-(4-Nitrophenyl)-2-furancarboxaldehyde[7147-77-5]GEO-02028
NewNonasaccharide Glc4Xyl3Gal2Structure of Nonasaccharide Glc4Xyl3Gal2[129865-06-1]GEO-04684
NewOctasaccharide Glc4Xyl3GalStructure of Octasaccharide Glc4Xyl3GalN/AGEO-04685
NewOstazin brilliant red H-3B hydroxyethyl celluloseStructure of Ostazin brilliant red H-3B hydroxyethyl celluloseN/AGEO-04687
PentamethylbenzaldehydeStructure of Pentamethylbenzaldehyde[17432-38-1]GEO-02086
5-Phenyl-2-furaldehydeStructure of 5-Phenyl-2-furaldehyde[13803-39-9]GEO-02118
Potassium (4S)-2,2-dimethyl-1,3-dioxolane-4-carboxylateStructure of Potassium (4S)-2,2-dimethyl-1,3-dioxolane-4-carboxylate[117205-81-9]GEO-04162
1H-Pyrazole-3-carboxaldehydeStructure of 1H-Pyrazole-3-carboxaldehyde[3920-50-1]GEO-02174
5-(Pyridin-2-ylthio)furan-2-carbaldehyde[709635-68-7]GEO-03484
Pyrrole-2-carboxaldehydeStructure of Pyrrole-2-carboxaldehyde[1003-29-8]GEO-02200
NewRemazol brilliant blue R 4-o-methyl-D-glucuronoxylanStructure of Remazol brilliant blue R 4-o-methyl-D-glucuronoxylanN/AGEO-04688
NewL-RiboseStructure of L-Ribose[24259-59-4]GEO-04657
NewL(-)-TaloseStructure of L(-)-Talose[23567-25-1]GEO-04669
NewD(+)-TaloseStructure of D(+)-Talose[7282-81-7]GEO-04668
TetradecanalStructure of Tetradecanal[124-25-4]GEO-04415
2-((1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)methylene)malononitrileN/AGEO-03550
2-ThiazolecarboxaldehydeStructure of 2-Thiazolecarboxaldehyde[10200-59-6]GEO-02295
1-Thio-D-glucose sodium saltStructure of 1-Thio-D-glucose sodium salt[62778-20-5]GEO-02307
1-Thio-beta-D-glucose tetraacetateStructure of 1-Thio-beta-D-glucose tetraacetate[19879-84-6]GEO-02308
2-ThiophenecarboxaldehydeStructure of 2-Thiophenecarboxaldehyde[98-03-3]GEO-02313
3-ThiophenecarboxaldehydeStructure of 3-Thiophenecarboxaldehyde[498-62-4]GEO-02315
NewL-(+)-ThreoseStructure of L-(+)-Threose[95-44-3]GEO-04659
NewD-(-)-ThreoseStructure of D-(-)-Threose[95-43-2]GEO-04658
Triacetyl-2-deoxyglucoseStructure of Triacetyl-2-deoxyglucose[69503-94-2]GEO-03964
2-(Trimethylsilyl)-1H-indole-7-carbaldehydeN/AGEO-03483
2,4,5-Trimethylthiophene-3-carboxaldehydeStructure of 2,4,5-Trimethylthiophene-3-carboxaldehyde[63826-44-8]GEO-02427
Tris(4-formylphenyl)amineStructure of Tris(4-formylphenyl)amine[119001-43-3]GEO-02432
NewD(+)-TuranoseStructure of D(+)-Turanose[547-25-1]GEO-04678
NewXyloglucan oligosaccharides (monomers)Structure of Xyloglucan oligosaccharides (monomers)N/AGEO-04686
NewL-XyloseStructure of L-Xylose[609-06-3]GEO-02456