Secondary alcohols
Thermo Scientific™ Chlorogenic acid, 98%, predominantly trans, from coffee seeds
CAS: 327-97-9 Molecular Formula: C16H18O9 Molecular Weight (g/mol): 354.31 MDL Number: MFCD00003862 InChI Key: CWVRJTMFETXNAD-JUHZACGLSA-N Synonym: unii-318adp12ri, 3-caffeoylquinate, caffeoyl quinic acid, hlorogenic acid, heriguard, 3-3,4-dihydroxycinnamoyl quinic acid, 3-o-caffeoylquinic acid, chlorogenate, 3-caffeoylquinic acid, chlorogenic acid PubChem CID: 1794427 ChEBI: CHEBI:16112 IUPAC Name: (1S,3R,4R,5R)-3-[(E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]oxy-1,4,5-trihydroxycyclohexane-1-carboxylic acid SMILES: O[C@@H]1C[C@](O)(C[C@@H](OC(=O)\C=C\C2=CC=C(O)C(O)=C2)[C@@H]1O)C(O)=O
1-n-Butylcyclohexanol, 98%, Thermo Scientific™
CAS: 5445-30-7 Molecular Formula: C10H20O Molecular Weight (g/mol): 156.269 MDL Number: MFCD00021404 InChI Key: RCHLXMOXBJRGNX-UHFFFAOYSA-N Synonym: 1-butyl-cyclohexan-1-ol, 1-butyl-cyclohexanol, butylcyclohexanol, 1-n-butylcyclohexanol, cyclohexanol, 1-butyl, 1-butylcyclohexanol PubChem CID: 138505 IUPAC Name: 1-butylcyclohexan-1-ol SMILES: CCCCC1(CCCCC1)O
N-BOC-Amino-(4-hydroxycyclohexyl)carboxylic acid, 95%, Thermo Scientific™
CAS: 369403-08-7 Molecular Formula: C12H21NO5 Molecular Weight (g/mol): 259.3 MDL Number: MFCD02683153 InChI Key: DRBVVUBYEBFRKS-UHFFFAOYSA-N Synonym: 1-boc-amino-4-hydroxy-cyclohexanecarboxylic acid, tertbutoxycarbonylaminohydroxycyclohexanecarboxylicacid, boc 4-cis/trans-1, 1-acch 4-oh, 4-hydroxy-1-2-methylpropan-2-yl oxycarbonylamino cyclohexane-1-carboxylic acid, 1-tert-butoxycarbonyl amino-4-hydroxycyclohexane-1-carboxylic acid, 1-tert-butoxycarbonyl amino-4-hydroxycyclohexanecarboxylic acid, n-boc-amino-4-hydroxycyclohexyl carboxylic acid, 1-tert-butoxy carbonyl amino-4-hydroxycyclohexane-1-carboxylic acid PubChem CID: 2734594 IUPAC Name: 4-hydroxy-1-[(2-methylpropan-2-yl)oxycarbonylamino]cyclohexane-1-carboxylic acid SMILES: CC(C)(C)OC(=O)NC1(CCC(CC1)O)C(=O)O
1,4-Cyclohexanediol, 99%, mixture of cis and trans, Thermo Scientific™
CAS: 556-48-9 Molecular Formula: C6H12O2 Molecular Weight (g/mol): 116.16 MDL Number: MFCD00001448,MFCD00063612,MFCD00075462 InChI Key: VKONPUDBRVKQLM-UHFFFAOYSA-N Synonym: cis-1,4-dihydroxycyclohexane, trans-1,4-dihydroxycyclohexane, 1,4-cyclohexanediol, cis, cis-cyclohexane-1,4-diol, 1,4-cyclohexanediol, trans, quinitol, trans-cyclohexane-1,4-diol, trans-1,4-cyclohexanediol, cis-1,4-cyclohexanediol, 1,4-cyclohexanediol PubChem CID: 11162 IUPAC Name: cyclohexane-1,4-diol SMILES: OC1CCC(O)CC1
(1R,2S,3R,4R)-2,3-Dihydroxy-4-(hydroxymethyl)-1-aminocyclopentane hydrochloride, 95%, Thermo Scientific™
CAS: 79200-57-0 Molecular Formula: C6H13NO3·HCl Molecular Weight (g/mol): 183.63 InChI Key: BLTXEPQZAMUGID-ILLHIODVSA-N Synonym: 1r,2s,3r,5r-3-amino-5-hydroxymethyl-cyclopentane-1,2-diol hydrochloride, 1r,2s,3r,4r-2,3-dihydroxy-4-hydroxylmethyl-1-aminocyclopentan hydro-chloride, 1r,2s,3r,4r-2,3-dihydroxy-4-hydroxymethyl cyclopentanaminium chloride, 1r,2s,3r,4r-2,3-dihydroxy-4-hydroxymethyl-1-am, 1r,2s,3r,5r-3-amino-5-hydroxymethyl cyclopentane-1,2-diol hcl, n-4-mesityl-1,3-thiazol-2-yl benzamide, 1r,2s,3r,4r-2,3-dihydroxy-4-hydroxymethyl-1-aminocyclopentane hydrochloride, 1r,2s,3r,5r-3-amino-5-hydroxymethyl cyclopentane-1,2-diol hydrochloride PubChem CID: 2734536 IUPAC Name: (1R,2S,3R,5R)-3-amino-5-(hydroxymethyl)cyclopentane-1,2-diol;hydrochloride SMILES: C1C(C(C(C1N)O)O)CO.Cl
trans-4-Aminocyclohexanol, 97%, Thermo Scientific™
CAS: 27489-62-9 Molecular Formula: C6H13NO Molecular Weight (g/mol): 115.17 InChI Key: IMLXLGZJLAOKJN-UHFFFAOYSA-N Synonym: aminocyclohexanol trans-4, 1r,4r-4-aminocyclohexanol, trans-4-hydroxycyclohexylamine, cyclohexanol, 4-amino, 1r,4r-4-aminocyclohexan-1-ol, cyclohexanol, 4-amino-, trans, cis-4-amino-cyclohexanol, cis-4-aminocyclohexanol, 4-aminocyclohexanol, trans-4-aminocyclohexanol PubChem CID: 81293 IUPAC Name: 4-aminocyclohexan-1-ol SMILES: C1CC(CCC1N)O
Thermo Scientific™ myo-Inositol, Cell Culture Grade
CAS: 87-89-8 Molecular Formula: C6H12O6 Molecular Weight (g/mol): 180.156 MDL Number: MFCD00077932 InChI Key: CDAISMWEOUEBRE-UHFFFAOYSA-N Synonym: myoinositol, 1d-chiro-inositol, allo-inositol, meso-inositol, i-inositol, epi-inositol, muco-inositol, inositol, myo-inositol, scyllo-inositol PubChem CID: 892 ChEBI: CHEBI:24848 IUPAC Name: cyclohexane-1,2,3,4,5,6-hexol SMILES: C1(C(C(C(C(C1O)O)O)O)O)O
4-Methylcyclohexanol, cis + trans, 98%, Thermo Scientific™
CAS: 589-91-3 Molecular Formula: C7H14O Molecular Weight (g/mol): 114.19 MDL Number: MFCD00001449,MFCD00064171,MFCD00064170 InChI Key: MQWCXKGKQLNYQG-UHFFFAOYSA-N Synonym: trans 4-methyl cyclohexanol, cyclohexanol, 4-methyl-, cis, p-methylcyclohexanol, methyl cyclohexanol, cyclohexanol, 4-methyl-, trans, 1-methyl-4-cyclohexanol, cyclohexanol, 4-methyl, cis-4-methylcyclohexanol, trans-4-methylcyclohexanol, 4-methylcyclohexanol PubChem CID: 11524 IUPAC Name: 4-methylcyclohexan-1-ol SMILES: CC1CCC(O)CC1
Cyclohexanol, 98%, Thermo Scientific™
CAS: 108-93-0 Molecular Formula: C6H12O Molecular Weight (g/mol): 100.16 InChI Key: HPXRVTGHNJAIIH-UHFFFAOYSA-N Synonym: adronol, naxol, adronal, hydralin, 1-cyclohexanol, hexalin, hydroxycyclohexane, hydrophenol, hexahydrophenol, cyclohexyl alcohol PubChem CID: 7966 ChEBI: CHEBI:18099 IUPAC Name: cyclohexanol SMILES: C1CCC(CC1)O
1,2-Cyclohexanediol, 98%, mixture of cis and trans, Thermo Scientific™
CAS: 931-17-9 Molecular Formula: C6H12O2 Molecular Weight (g/mol): 116.16 MDL Number: MFCD00003861 InChI Key: PFURGBBHAOXLIO-UHFFFAOYSA-N Synonym: 1,2-cyclohexanediol, mixture of cis and trans, trans-1,2-dihydroxycyclohexane, 1,2-trans-cyclohexanediol, brenzkatechin german, 1,2-benzenediol, hexahydro, brenzkatechin, 1,2-dihydroxycyclohexane, pyrocatechitol, 2-hydroxycyclohexanol, 1,2-cyclohexanediol PubChem CID: 13601 ChEBI: CHEBI:24567 IUPAC Name: cyclohexane-1,2-diol SMILES: C1CCC(C(C1)O)O
D-(-)-Quinic acid, 98%, Thermo Scientific™
CAS: 77-95-2 Molecular Formula: C7H12O6 Molecular Weight (g/mol): 192.17 MDL Number: MFCD00003864 InChI Key: AAWZDTNXLSGCEK-UHFFFAOYNA-N Synonym: unii-058c04bgyi, d-quinic acid, l-quinic acid, quinate, chinasaure, kinic acid, chinic acid, --quinic acid, d---quinic acid, quinic acid PubChem CID: 6508 IUPAC Name: (3R,5R)-1,3,4,5-tetrahydroxycyclohexane-1-carboxylic acid SMILES: OC1CC(O)(CC(O)C1O)C(O)=O
D(-)-Quinic acid, 98+%, Thermo Scientific™
CAS: 77-95-2 Molecular Formula: C7H12O6 Molecular Weight (g/mol): 192.17 MDL Number: MFCD00003864 InChI Key: AAWZDTNXLSGCEK-UHFFFAOYNA-N Synonym: unii-058c04bgyi, d-quinic acid, l-quinic acid, quinate, chinasaure, kinic acid, chinic acid, --quinic acid, d---quinic acid, quinic acid PubChem CID: 6508 IUPAC Name: (3R,5R)-1,3,4,5-tetrahydroxycyclohexane-1-carboxylic acid SMILES: OC1CC(O)(CC(O)C1O)C(O)=O
trans-4-Methylcyclohexanol, 98%, Thermo Scientific™
CAS: 7731-29-5 Molecular Formula: C7H14O Molecular Weight (g/mol): 114.188 MDL Number: MFCD00064171 InChI Key: MQWCXKGKQLNYQG-UHFFFAOYSA-N Synonym: trans 4-methyl cyclohexanol, cyclohexanol, 4-methyl-, cis, p-methylcyclohexanol, methyl cyclohexanol, cyclohexanol, 4-methyl-, trans, 1-methyl-4-cyclohexanol, cyclohexanol, 4-methyl, cis-4-methylcyclohexanol, trans-4-methylcyclohexanol, 4-methylcyclohexanol PubChem CID: 11524 IUPAC Name: 4-methylcyclohexan-1-ol SMILES: CC1CCC(CC1)O
cis-1,2-Cyclohexanediol, 99%, Thermo Scientific™
CAS: 1792-81-0 Molecular Formula: C6H12O2 Molecular Weight (g/mol): 116.16 MDL Number: MFCD00064944 InChI Key: PFURGBBHAOXLIO-OLQVQODUSA-N Synonym: 1alpha,2alpha-cyclohexanediol, cis-1,2-cyclohexandiol, 1,2-cyclohexanediol, 1r,2s-rel, 1,2-cyclohexanediol, cis-8ci 9ci, 1,2-cyclohexanediol, cis, 1r,2s-cyclohexane-1,2-diol, cis-1,2-dihydroxycyclohexane, grandidentol, cis-cyclohexane-1,2-diol, cis-1,2-cyclohexanediol PubChem CID: 92903 ChEBI: CHEBI:32329 IUPAC Name: (1R,2S)-cyclohexane-1,2-diol SMILES: C1CCC(C(C1)O)O
2,6-Dimethylcyclohexanol, 99%, mixture of isomers, Thermo Scientific™
CAS: 5337-72-4 Molecular Formula: C8H16O Molecular Weight (g/mol): 128.21 MDL Number: MFCD00001502 InChI Key: MOISVRZIQDQVPF-UHFFFAOYSA-N Synonym: 2,6-dimethylcyclohexanol, mixture of isomers, 2,6-dimethyl-cyclohexan-1-ol, 2,6-dimethylcyclohexanol,c&t, acmc-20ao81, 2,6-dimethyl-cyclohexanol, cyclohexanol,6-dimethyl, ambsclk-255, 2,6-dimethylcyclohexyl alcohol, cyclohexanol, 2,6-dimethyl, 2,6-dimethylcyclohexanol PubChem CID: 21428 IUPAC Name: 2,6-dimethylcyclohexan-1-ol SMILES: CC1CCCC(C1O)C
2-Methylcyclohexanol, 99%, mixture of cis and trans, Thermo Scientific™
CAS: 583-59-5 Molecular Formula: C7H14O Molecular Weight (g/mol): 114.19 MDL Number: MFCD00001443 InChI Key: NDVWOBYBJYUSMF-UHFFFAOYSA-N Synonym: 2-methylcyclohexanol, mixed isomers, 2-methyl-cyclohexanol, cis-2-methylcyclohexanol, cyclohexanol, o-methyl, 2-methylcyclohexyl alcohol, 2-methyl-1-cyclohexanol, 1-methyl-2-cyclohexanol, o-methylcyclohexanol, cyclohexanol, 2-methyl, 2-methylcyclohexanol PubChem CID: 11418 IUPAC Name: 2-methylcyclohexan-1-ol SMILES: CC1CCCCC1O
2-Methylcyclohexanol, cis + trans, 97%, Thermo Scientific™
CAS: 583-59-5 Molecular Formula: C7H14O Molecular Weight (g/mol): 114.188 MDL Number: MFCD00001443 InChI Key: NDVWOBYBJYUSMF-UHFFFAOYSA-N Synonym: 2-methylcyclohexanol, mixed isomers, 2-methyl-cyclohexanol, cis-2-methylcyclohexanol, cyclohexanol, o-methyl, 2-methylcyclohexyl alcohol, 2-methyl-1-cyclohexanol, 1-methyl-2-cyclohexanol, o-methylcyclohexanol, cyclohexanol, 2-methyl, 2-methylcyclohexanol PubChem CID: 11418 IUPAC Name: 2-methylcyclohexan-1-ol SMILES: CC1CCCCC1O
trans-1,2-Cyclohexanediol, 98%, Thermo Scientific™
CAS: 1460-57-7 Molecular Formula: C6H12O2 Molecular Weight (g/mol): 116.16 MDL Number: MFCD00063611 InChI Key: PFURGBBHAOXLIO-PHDIDXHHSA-N Synonym: 1r,2r-1,2-cyclohexanediol, trans-1,2-cyclohexandiol, l6tj aq bq & trans, 1,2-cyclohexanediol, trans, trans-1,2-dihydroxycyclohexane, 1,2-cyclohexanediol, 1r,2r-rel, 1r,2r-trans-1,2-cyclohexanediol, 1r,2r-cyclohexane-1,2-diol, trans-cyclohexane-1,2-diol, trans-1,2-cyclohexanediol PubChem CID: 92886 ChEBI: CHEBI:16931 IUPAC Name: (1R,2R)-cyclohexane-1,2-diol SMILES: O[C@@H]1CCCC[C@H]1O
Thermo Scientific™ Inositol, 98+%
CAS: 87-89-8 Molecular Formula: C6H12O6 Molecular Weight (g/mol): 180.16 MDL Number: MFCD00077932 InChI Key: CDAISMWEOUEBRE-UHFFFAOYSA-N Synonym: myoinositol, 1d-chiro-inositol, allo-inositol, meso-inositol, i-inositol, epi-inositol, muco-inositol, inositol, myo-inositol, scyllo-inositol PubChem CID: 892 ChEBI: CHEBI:24848 IUPAC Name: cyclohexane-1,2,3,4,5,6-hexol SMILES: C1(C(C(C(C(C1O)O)O)O)O)O
1-Ethynylcyclohexanol, 99%, Thermo Scientific™
CAS: 78-27-3 Molecular Formula: C8H12O Molecular Weight (g/mol): 124.183 MDL Number: MFCD00003858 InChI Key: QYLFHLNFIHBCPR-UHFFFAOYSA-N Synonym: 1-ethynyl-cyclohexan-1-ol, unii-6rv04025eh, 1-ethynyl-cyclohexanol, 1-ethynyl cyclohexanol, 1-ethynyl-1-hydroxycyclohexane, 1-hydroxycyclohexyl ethyne, cyclohexanol, 1-ethynyl, ethynylcyclohexanol, 1-ethynylcyclohexanol, 1-ethynyl-1-cyclohexanol PubChem CID: 6525 IUPAC Name: 1-ethynylcyclohexan-1-ol SMILES: C#CC1(CCCCC1)O
Cyclohexanone cyanohydrin, 98%, Thermo Scientific™
CAS: 931-97-5 Molecular Formula: C7H11NO Molecular Weight (g/mol): 125.171 MDL Number: MFCD00003818 InChI Key: ZDBRPNZOTCHLSP-UHFFFAOYSA-N Synonym: cyclohexanoncyanhydrin, 1-hydroxy-cyclohexanecarbonitrile, ccris 4608, unii-on43942n5p, cyclohexanecarbonitrile, 1-hydroxy, 1-cyano-1-hydroxycyclohexane, cyclohexanone, cyanohydrin, 1-hydroxy-1-cyclohexanecarbonitrile, 1-hydroxycyclohexanecarbonitrile, cyclohexanone cyanohydrin PubChem CID: 13610 IUPAC Name: 1-hydroxycyclohexane-1-carbonitrile SMILES: C1CCC(CC1)(C#N)O
cis-1,2-Cyclopentanediol, 98%, Thermo Scientific™
CAS: 5057-98-7 Molecular Formula: C5H10O2 Molecular Weight (g/mol): 102.13 MDL Number: MFCD00134192 InChI Key: VCVOSERVUCJNPR-SYDPRGILSA-N Synonym: 1alpha,2alpha-cyclopentanediol, cis-cyclopenten-1,2-diol, cis-1,2-cyclopen-tanediol, 1,2-cis-cyclopentanediol, cis-1,2-cyclopentandiol, 1s,2r cyclopentane-1,2-diol, 1r,2s-cyclopentane-1,2-diol, cis-1,2-dihydroxycyclopentane, cis-cyclopentane-1,2-diol, cis-1,2-cyclopentanediol PubChem CID: 2733293 IUPAC Name: (1R,2S)-cyclopentane-1,2-diol SMILES: C1CC(C(C1)O)O
Thermo Scientific™ myo-Inositol, 98+%
CAS: 87-89-8 Molecular Formula: C6H12O6 Molecular Weight (g/mol): 180.156 MDL Number: MFCD00077932 InChI Key: CDAISMWEOUEBRE-UHFFFAOYSA-N Synonym: myoinositol, 1d-chiro-inositol, allo-inositol, meso-inositol, i-inositol, epi-inositol, muco-inositol, inositol, myo-inositol, scyllo-inositol PubChem CID: 892 ChEBI: CHEBI:24848 IUPAC Name: cyclohexane-1,2,3,4,5,6-hexol SMILES: C1(C(C(C(C(C1O)O)O)O)O)O
cis,cis-1,3,5-Cyclohexanetriol dihydrate, 98%, Thermo Scientific™
CAS: 60662-54-6 Molecular Formula: C6H12O3·2H2O Molecular Weight (g/mol): 168.19 InChI Key: MAPLMYMZLRIJSP-UHFFFAOYSA-N Synonym: 1r,3s,5s-cyclohexane-1,3,5-triol dihydrate, cis cis-1 3 5-cyclohexanetriol dihydrate, cyclohexane-1,3,5-triol-water 1/2, cyclohexane-1,3,5-triol dihydrate, ciscis-135-cyclohexanetrioldihydrate, 1s,3s,5s-cyclohexane-1,3,5-triol dihydrate, cis-phloroglucitol, cis,cis-1,3,5-trihydroxycyclohexane, cis,cis-1,3,5-cyclohexanetriol dihydrate PubChem CID: 16211857 IUPAC Name: cyclohexane-1,3,5-triol;dihydrate SMILES: C1C(CC(CC1O)O)O.O.O
1-n-Propylcyclohexanol, 98%, Thermo Scientific™
CAS: 5445-24-9 Molecular Formula: C9H18O Molecular Weight (g/mol): 142.24 MDL Number: MFCD00046364 InChI Key: PYLPYOPJKOJRNP-UHFFFAOYSA-N Synonym: 1-n-propylcyclohexane-1-ol, 1-n-propyl-1-cyclohexanol, propylcyclohexanol, 1-n-propyl cyclohexanol-1, cyclohexanol, 1-propyl, 1-n-propylcyclohexanol, 1-propylcyclohexanol PubChem CID: 138504 IUPAC Name: 1-propylcyclohexan-1-ol SMILES: CCCC1(O)CCCCC1
cis-2-Aminocyclohexanol hydrochloride, 99+%, Thermo Scientific™
CAS: 6936-47-6 Molecular Formula: C6H13NO·HCl Molecular Weight (g/mol): 151.64 MDL Number: MFCD00143981 InChI Key: LKKCSUHCVGCGFA-RIHPBJNCSA-N Synonym: cis-2-amino-cyclohexanol hydrochloride, cis-2-aminocyclohexanol hcl, cis-2-aminocyclohexanolhydrochloride, cyclohexanol, 2-amino-, hydrochloride, cis, 1r,2s-2-aminocyclohexanol hcl, cis 1r,2s-2-amino-cyclohexanol hydrochloride, 1r,2s-rel-2-aminocyclohexanol hydrochloride, 1r,2s-2-aminocyclohexan-1-ol hydrochloride, cis-2-aminocyclohexanol hydrochloride, 1r,2s-2-aminocyclohexanol hydrochloride PubChem CID: 12228413 IUPAC Name: (1R,2S)-2-aminocyclohexan-1-ol;hydrochloride SMILES: C1CCC(C(C1)N)O.Cl
4,4-Dimethylcyclohexan-1-ol, 95%, Thermo Scientific™
CAS: 932-01-4 Molecular Formula: C8H16O Molecular Weight (g/mol): 128.22 MDL Number: MFCD00101954 InChI Key: VUQOIZPFYIVUKD-UHFFFAOYSA-N Synonym: 4,4-dimethyl cyclohexan-1-ol, 4,4-dimethyl-1-cyclohexanol, cyclohexanol,4,4-dimethyl, 4,4-dimethyl-cyclohexanol, cyclohexanol, 4,4-dimethyl, 4,4-dimethylcyclohexanol PubChem CID: 136735 IUPAC Name: 4,4-dimethylcyclohexan-1-ol SMILES: CC1(C)CCC(O)CC1
trans-4-Aminocyclohexanol hydrochloride, 97%, Thermo Scientific™
CAS: 50910-54-8 Molecular Formula: C6H14ClNO Molecular Weight (g/mol): 151.63 MDL Number: MFCD00012566,MFCD07366531,MFCD06410647 InChI Key: RKTQEVMZBCBOSB-UHFFFAOYSA-N Synonym: trans-4-aminocyclohexanol hcl, cyclohexanol, 4-amino-, hydrochloride, 1r,4r-4-aminocyclohexan-1-ol hydrochloride, 4-amino-cyclohexanol hydrochloride, cis-4-amino-cyclohexanol hydrochloride, 4-aminocyclohexan-1-ol hydrochloride, cis-4-aminocyclohexanol hcl, 4-aminocyclohexanol hydrochloride, cis-4-aminocyclohexanol hydrochloride, trans-4-aminocyclohexanol hydrochloride PubChem CID: 522619 IUPAC Name: 4-aminocyclohexan-1-ol;hydrochloride SMILES: Cl.NC1CCC(O)CC1
Thermo Scientific™ D-Pinitol, 95%
CAS: 10284-63-6 Molecular Formula: C7H14O6 Molecular Weight (g/mol): 194.18 MDL Number: MFCD00216659 InChI Key: DSCFFEYYQKSRSV-FEPQRWDDSA-N Synonym: d-ononitol, sennitol, methylinositol, +-pinitol, pinit, inzitol, d-+-pinitol, 3-o-methyl-d-chiro-inositol, pinitol, d-pinitol PubChem CID: 164619 IUPAC Name: (1S,2S,4S,5R)-6-methoxycyclohexane-1,2,3,4,5-pentol SMILES: COC1[C@@H](O)[C@@H](O)C(O)[C@H](O)[C@H]1O