Lipids and Lipid Derivatives
Filtered Search Results
Oleic acid, tech. 90%
CAS: 112-80-1 Molecular Formula: C18H34O2 Molecular Weight (g/mol): 282.47 MDL Number: MFCD00064242 InChI Key: ZQPPMHVWECSIRJ-MDZDMXLPSA-N Synonym: oleic acid,cis-9-octadecenoic acid,cis-oleic acid,elaidoic acid,oleate,glycon wo,wecoline oo,pamolyn 100,glycon ro,z-octadec-9-enoic acid PubChem CID: 445639 ChEBI: CHEBI:16196 SMILES: CCCCCCCC\C=C\CCCCCCCC(O)=O
| PubChem CID | 445639 |
|---|---|
| CAS | 112-80-1 |
| Molecular Weight (g/mol) | 282.47 |
| ChEBI | CHEBI:16196 |
| MDL Number | MFCD00064242 |
| SMILES | CCCCCCCC\C=C\CCCCCCCC(O)=O |
| Synonym | oleic acid,cis-9-octadecenoic acid,cis-oleic acid,elaidoic acid,oleate,glycon wo,wecoline oo,pamolyn 100,glycon ro,z-octadec-9-enoic acid |
| InChI Key | ZQPPMHVWECSIRJ-MDZDMXLPSA-N |
| Molecular Formula | C18H34O2 |
Linalool, 97%
CAS: 78-70-6 Molecular Formula: C10H18O Molecular Weight (g/mol): 154.253 MDL Number: MFCD00008906 InChI Key: CDOSHBSSFJOMGT-UHFFFAOYSA-N Synonym: linalool,linalol,3,7-dimethyl-1,6-octadien-3-ol,allo-ocimenol,beta-linalool,linalyl alcohol,1,6-octadien-3-ol, 3,7-dimethyl,+--linalool,p-linalool,linanool PubChem CID: 6549 ChEBI: CHEBI:17580 IUPAC Name: 3,7-dimethylocta-1,6-dien-3-ol SMILES: CC(=CCCC(C)(C=C)O)C
| PubChem CID | 6549 |
|---|---|
| CAS | 78-70-6 |
| Molecular Weight (g/mol) | 154.253 |
| ChEBI | CHEBI:17580 |
| MDL Number | MFCD00008906 |
| SMILES | CC(=CCCC(C)(C=C)O)C |
| Synonym | linalool,linalol,3,7-dimethyl-1,6-octadien-3-ol,allo-ocimenol,beta-linalool,linalyl alcohol,1,6-octadien-3-ol, 3,7-dimethyl,+--linalool,p-linalool,linanool |
| IUPAC Name | 3,7-dimethylocta-1,6-dien-3-ol |
| InChI Key | CDOSHBSSFJOMGT-UHFFFAOYSA-N |
| Molecular Formula | C10H18O |
Tin(II) 2-ethylhexanoate, 95%
CAS: 301-10-0 Molecular Formula: C16H30O4Sn Molecular Weight (g/mol): 405.122 MDL Number: MFCD00002676 InChI Key: KSBAEPSJVUENNK-UHFFFAOYSA-L Synonym: stannous octoate,tin ii 2-ethylhexanoate,tin octoate,tin ii bis 2-ethylhexanoate,tin 2+ bis 2-ethylhexanoate,tin ethylhexanoate,tin 2-ethylhexanoate,hexanoic acid, 2-ethyl-, tin 2+ salt,stannous 2-ethylhexoate,tin ii 2-ethylhexylate PubChem CID: 9318 IUPAC Name: 2-ethylhexanoate;tin(2+) SMILES: CCCCC(CC)C(=O)[O-].CCCCC(CC)C(=O)[O-].[Sn+2]
| PubChem CID | 9318 |
|---|---|
| CAS | 301-10-0 |
| Molecular Weight (g/mol) | 405.122 |
| MDL Number | MFCD00002676 |
| SMILES | CCCCC(CC)C(=O)[O-].CCCCC(CC)C(=O)[O-].[Sn+2] |
| Synonym | stannous octoate,tin ii 2-ethylhexanoate,tin octoate,tin ii bis 2-ethylhexanoate,tin 2+ bis 2-ethylhexanoate,tin ethylhexanoate,tin 2-ethylhexanoate,hexanoic acid, 2-ethyl-, tin 2+ salt,stannous 2-ethylhexoate,tin ii 2-ethylhexylate |
| IUPAC Name | 2-ethylhexanoate;tin(2+) |
| InChI Key | KSBAEPSJVUENNK-UHFFFAOYSA-L |
| Molecular Formula | C16H30O4Sn |
Thermo Scientific Chemicals all-trans-Retinoic acid, 97%
CAS: 302-79-4 Molecular Formula: C20H28O2 Molecular Weight (g/mol): 300.44 MDL Number: MFCD00001551 InChI Key: SHGAZHPCJJPHSC-YCNIQYBTSA-N Synonym: retinoic acid,tretinoin,vitamin a acid,all-trans-retinoic acid,trans-retinoic acid,renova,airol,retin-a,vesanoid,atra PubChem CID: 444795 ChEBI: CHEBI:15367 IUPAC Name: (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoic acid SMILES: C\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C(O)=O
| PubChem CID | 444795 |
|---|---|
| CAS | 302-79-4 |
| Molecular Weight (g/mol) | 300.44 |
| ChEBI | CHEBI:15367 |
| MDL Number | MFCD00001551 |
| SMILES | C\C(\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C(/C)=C/C(O)=O |
| Synonym | retinoic acid,tretinoin,vitamin a acid,all-trans-retinoic acid,trans-retinoic acid,renova,airol,retin-a,vesanoid,atra |
| IUPAC Name | (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoic acid |
| InChI Key | SHGAZHPCJJPHSC-YCNIQYBTSA-N |
| Molecular Formula | C20H28O2 |
Sodium taurocholate hydrate, 96%
CAS: 345909-26-4 Molecular Formula: C26H44NNaO7S Molecular Weight (g/mol): 537.688 MDL Number: MFCD00150819 InChI Key: JAJWGJBVLPIOOH-VXFFEJGCSA-M Synonym: sodium taurocholate,taurocholic acid sodium salt,taurocholate sodium,taurocholate sodium salt,unii-m6n3th81no,monosodium n-choloyltaurinate,m6n3th81no,monosodium taurocholate,sodium n-choloyltaurinate,monosodium taurocholic acid PubChem CID: 131632374 IUPAC Name: sodium;2-[[(4R)-4-[(3R,5S,7R,8R,9R,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]amino]ethanesulfonate SMILES: CC(CCC(=O)NCCS(=O)(=O)[O-])C1CCC2C1(C(CC3C2C(CC4C3(CCC(C4)O)C)O)O)C.[Na+]
| PubChem CID | 131632374 |
|---|---|
| CAS | 345909-26-4 |
| Molecular Weight (g/mol) | 537.688 |
| MDL Number | MFCD00150819 |
| SMILES | CC(CCC(=O)NCCS(=O)(=O)[O-])C1CCC2C1(C(CC3C2C(CC4C3(CCC(C4)O)C)O)O)C.[Na+] |
| Synonym | sodium taurocholate,taurocholic acid sodium salt,taurocholate sodium,taurocholate sodium salt,unii-m6n3th81no,monosodium n-choloyltaurinate,m6n3th81no,monosodium taurocholate,sodium n-choloyltaurinate,monosodium taurocholic acid |
| IUPAC Name | sodium;2-[[(4R)-4-[(3R,5S,7R,8R,9R,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]amino]ethanesulfonate |
| InChI Key | JAJWGJBVLPIOOH-VXFFEJGCSA-M |
| Molecular Formula | C26H44NNaO7S |
6-Aminohexanoic acid, 99%
CAS: 60-32-2 Molecular Formula: C6H13NO2 Molecular Weight (g/mol): 131.175 MDL Number: MFCD00008238 InChI Key: SLXKOJJOQWFEFD-UHFFFAOYSA-N Synonym: 6-aminocaproic acid,aminocaproic acid,amicar,epsikapron,capramol,caprocid,epsamon,eaca,acepramin,caprolisin PubChem CID: 564 ChEBI: CHEBI:16586 IUPAC Name: 6-aminohexanoic acid SMILES: C(CCC(=O)O)CCN
| PubChem CID | 564 |
|---|---|
| CAS | 60-32-2 |
| Molecular Weight (g/mol) | 131.175 |
| ChEBI | CHEBI:16586 |
| MDL Number | MFCD00008238 |
| SMILES | C(CCC(=O)O)CCN |
| Synonym | 6-aminocaproic acid,aminocaproic acid,amicar,epsikapron,capramol,caprocid,epsamon,eaca,acepramin,caprolisin |
| IUPAC Name | 6-aminohexanoic acid |
| InChI Key | SLXKOJJOQWFEFD-UHFFFAOYSA-N |
| Molecular Formula | C6H13NO2 |
Tributyrin, 97%
CAS: 60-01-5 Molecular Formula: C15H26O6 Molecular Weight (g/mol): 302.36 MDL Number: MFCD00009392 InChI Key: UYXTWWCETRIEDR-UHFFFAOYSA-N Synonym: tributyrin,glyceryl tributyrate,glycerol tributyrate,tributin,butyrin,butyryl triglyceride,propane-1,2,3-triyl tributyrate,glycerol tributanoate,glyceroltributyrin,tri-n-butyrin PubChem CID: 6050 ChEBI: CHEBI:35020 IUPAC Name: 2,3-di(butanoyloxy)propyl butanoate SMILES: CCCC(=O)OCC(COC(=O)CCC)OC(=O)CCC
| PubChem CID | 6050 |
|---|---|
| CAS | 60-01-5 |
| Molecular Weight (g/mol) | 302.36 |
| ChEBI | CHEBI:35020 |
| MDL Number | MFCD00009392 |
| SMILES | CCCC(=O)OCC(COC(=O)CCC)OC(=O)CCC |
| Synonym | tributyrin,glyceryl tributyrate,glycerol tributyrate,tributin,butyrin,butyryl triglyceride,propane-1,2,3-triyl tributyrate,glycerol tributanoate,glyceroltributyrin,tri-n-butyrin |
| IUPAC Name | 2,3-di(butanoyloxy)propyl butanoate |
| InChI Key | UYXTWWCETRIEDR-UHFFFAOYSA-N |
| Molecular Formula | C15H26O6 |
1-Decanol, 98+%
CAS: 112-30-1 Molecular Formula: C10H22O Molecular Weight (g/mol): 158.285 MDL Number: MFCD00004747 InChI Key: MWKFXSUHUHTGQN-UHFFFAOYSA-N Synonym: 1-decanol,decyl alcohol,decanol,n-decyl alcohol,n-decanol,capric alcohol,nonylcarbinol,antak,caprinic alcohol,royaltac PubChem CID: 8174 ChEBI: CHEBI:28903 IUPAC Name: decan-1-ol SMILES: CCCCCCCCCCO
| PubChem CID | 8174 |
|---|---|
| CAS | 112-30-1 |
| Molecular Weight (g/mol) | 158.285 |
| ChEBI | CHEBI:28903 |
| MDL Number | MFCD00004747 |
| SMILES | CCCCCCCCCCO |
| Synonym | 1-decanol,decyl alcohol,decanol,n-decyl alcohol,n-decanol,capric alcohol,nonylcarbinol,antak,caprinic alcohol,royaltac |
| IUPAC Name | decan-1-ol |
| InChI Key | MWKFXSUHUHTGQN-UHFFFAOYSA-N |
| Molecular Formula | C10H22O |
Thermo Scientific Chemicals Thymolphthalein
CAS: 125-20-2 Molecular Formula: C28H30O4 Molecular Weight (g/mol): 430.544 MDL Number: MFCD00005909 InChI Key: LDKDGDIWEUUXSH-UHFFFAOYSA-N Synonym: thymolphthalein,thymophthalein,unii-yg5i28wsqp,yg5i28wsqp,phenolphthalein, 5',5-diisopropyl-2',2-dimethyl,3,3-bis 4-hydroxy-5-isopropyl-2-methylphenyl-2-benzofuran-1 3h-one,1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-2-methyl-5-1-methylethyl phenyl,5',5-diisopropyl-2',2-dimethylphenolphthalein,3,3-bis 4-hydroxy-2-methyl-5-propan-2-ylphenyl-2-benzofuran-1-one PubChem CID: 31316 IUPAC Name: 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one SMILES: CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O
| PubChem CID | 31316 |
|---|---|
| CAS | 125-20-2 |
| Molecular Weight (g/mol) | 430.544 |
| MDL Number | MFCD00005909 |
| SMILES | CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O |
| Synonym | thymolphthalein,thymophthalein,unii-yg5i28wsqp,yg5i28wsqp,phenolphthalein, 5',5-diisopropyl-2',2-dimethyl,3,3-bis 4-hydroxy-5-isopropyl-2-methylphenyl-2-benzofuran-1 3h-one,1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-2-methyl-5-1-methylethyl phenyl,5',5-diisopropyl-2',2-dimethylphenolphthalein,3,3-bis 4-hydroxy-2-methyl-5-propan-2-ylphenyl-2-benzofuran-1-one |
| IUPAC Name | 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one |
| InChI Key | LDKDGDIWEUUXSH-UHFFFAOYSA-N |
| Molecular Formula | C28H30O4 |
Thermo Scientific Chemicals Castor oil, specified according to the requirements of Ph.Eur.
CAS: 8001-79-4 Molecular Formula: C57H104O9 Molecular Weight (g/mol): 933.45 MDL Number: MFCD00130746 InChI Key: ZEMPKEQAKRGZGQ-AAKVHIHISA-N Synonym: castor oil,ricinus oil,olio di ricino,venelex,xenaderm,optase,trypsin complex,unii-d5340y2i9g,castor oil usp:jan,1-o,2-o,3-o-tris z-12-hydroxy-9-octadecenoyl glycerol PubChem CID: 14030006 IUPAC Name: 2,3-bis[[(Z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (Z)-12-hydroxyoctadec-9-enoate SMILES: CCCCCCC(CC=CCCCCCCCC(=O)OCC(COC(=O)CCCCCCCC=CCC(CCCCCC)O)OC(=O)CCCCCCCC=CCC(CCCCCC)O)O
| PubChem CID | 14030006 |
|---|---|
| CAS | 8001-79-4 |
| Molecular Weight (g/mol) | 933.45 |
| MDL Number | MFCD00130746 |
| SMILES | CCCCCCC(CC=CCCCCCCCC(=O)OCC(COC(=O)CCCCCCCC=CCC(CCCCCC)O)OC(=O)CCCCCCCC=CCC(CCCCCC)O)O |
| Synonym | castor oil,ricinus oil,olio di ricino,venelex,xenaderm,optase,trypsin complex,unii-d5340y2i9g,castor oil usp:jan,1-o,2-o,3-o-tris z-12-hydroxy-9-octadecenoyl glycerol |
| IUPAC Name | 2,3-bis[[(Z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (Z)-12-hydroxyoctadec-9-enoate |
| InChI Key | ZEMPKEQAKRGZGQ-AAKVHIHISA-N |
| Molecular Formula | C57H104O9 |
D(+)-Carvone, 98%, synthetic
CAS: 2244-16-8 Molecular Formula: C10H14O Molecular Weight (g/mol): 150.22 MDL Number: MFCD00062997 InChI Key: ULDHMXUKGWMISQ-VIFPVBQESA-N Synonym: d-carvone,+-carvone,s-+-carvone,s-carvone,s-2-methyl-5-prop-1-en-2-yl cyclohex-2-enone,+-s-carvone,carvone, +,d +-carvone,carvol,s-+-p-mentha-6,8-dien-2-one PubChem CID: 16724 ChEBI: CHEBI:15399 IUPAC Name: (5S)-2-methyl-5-prop-1-en-2-ylcyclohex-2-en-1-one SMILES: CC1=CCC(CC1=O)C(=C)C
| PubChem CID | 16724 |
|---|---|
| CAS | 2244-16-8 |
| Molecular Weight (g/mol) | 150.22 |
| ChEBI | CHEBI:15399 |
| MDL Number | MFCD00062997 |
| SMILES | CC1=CCC(CC1=O)C(=C)C |
| Synonym | d-carvone,+-carvone,s-+-carvone,s-carvone,s-2-methyl-5-prop-1-en-2-yl cyclohex-2-enone,+-s-carvone,carvone, +,d +-carvone,carvol,s-+-p-mentha-6,8-dien-2-one |
| IUPAC Name | (5S)-2-methyl-5-prop-1-en-2-ylcyclohex-2-en-1-one |
| InChI Key | ULDHMXUKGWMISQ-VIFPVBQESA-N |
| Molecular Formula | C10H14O |
Methyl linoleate, 99%
CAS: 112-63-0 Molecular Formula: C19H34O2 Molecular Weight (g/mol): 294.48 MDL Number: MFCD00009534 InChI Key: WTTJVINHCBCLGX-NQLNTKRDSA-N Synonym: methyl linoleate,linoleic acid methyl ester,methyl lineoleate,methyl 9z,12z-octadeca-9,12-dienoate,methyl octadecadienoate,methyl 9-cis,12-cis-octadecadienoate,linoleic acid,methyl ester,linoleic acid, methyl ester,methyl linoleate, native,9,12-octadecadienoic acid z,z-, methyl ester PubChem CID: 5284421 ChEBI: CHEBI:69080 IUPAC Name: methyl (9Z,12Z)-octadeca-9,12-dienoate SMILES: CCCCCC=CCC=CCCCCCCCC(=O)OC
| PubChem CID | 5284421 |
|---|---|
| CAS | 112-63-0 |
| Molecular Weight (g/mol) | 294.48 |
| ChEBI | CHEBI:69080 |
| MDL Number | MFCD00009534 |
| SMILES | CCCCCC=CCC=CCCCCCCCC(=O)OC |
| Synonym | methyl linoleate,linoleic acid methyl ester,methyl lineoleate,methyl 9z,12z-octadeca-9,12-dienoate,methyl octadecadienoate,methyl 9-cis,12-cis-octadecadienoate,linoleic acid,methyl ester,linoleic acid, methyl ester,methyl linoleate, native,9,12-octadecadienoic acid z,z-, methyl ester |
| IUPAC Name | methyl (9Z,12Z)-octadeca-9,12-dienoate |
| InChI Key | WTTJVINHCBCLGX-NQLNTKRDSA-N |
| Molecular Formula | C19H34O2 |
Sodium fumarate, 98%
CAS: 17013-01-3 Molecular Formula: C4H4Na2O4 Molecular Weight (g/mol): 162.052 MDL Number: MFCD00064567 InChI Key: VXXVUHAXJHEYFH-SEPHDYHBSA-N Synonym: disodium fumarate,sodium fumarate,sodium fumarate dibasic,fumaric acid, disodium salt,fumaric acid disodium salt,fumaran sodny czech,fumaran sodny,disodium butenedioate,di-sodium fumarate,sodium monofumarate PubChem CID: 87110070 IUPAC Name: (E)-but-2-enedioic acid;sodium SMILES: C(=CC(=O)O)C(=O)O.[Na].[Na]
| PubChem CID | 87110070 |
|---|---|
| CAS | 17013-01-3 |
| Molecular Weight (g/mol) | 162.052 |
| MDL Number | MFCD00064567 |
| SMILES | C(=CC(=O)O)C(=O)O.[Na].[Na] |
| Synonym | disodium fumarate,sodium fumarate,sodium fumarate dibasic,fumaric acid, disodium salt,fumaric acid disodium salt,fumaran sodny czech,fumaran sodny,disodium butenedioate,di-sodium fumarate,sodium monofumarate |
| IUPAC Name | (E)-but-2-enedioic acid;sodium |
| InChI Key | VXXVUHAXJHEYFH-SEPHDYHBSA-N |
| Molecular Formula | C4H4Na2O4 |
Vitamin A palmitate, 1.7 M.I.U./g
CAS: 79-81-2 Molecular Formula: C36H60O2 Molecular Weight (g/mol): 524.874 MDL Number: MFCD00019414 InChI Key: VYGQUTWHTHXGQB-FFHKNEKCSA-N Synonym: retinyl palmitate,vitamin a palmitate,retinol palmitate,retinol, hexadecanoate,arovit,all-trans-retinyl palmitate,optovit-a,retinyl hexadecanoate,aquapalm,dispatabs tabs PubChem CID: 5280531 ChEBI: CHEBI:17616 IUPAC Name: [(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenyl] hexadecanoate SMILES: CCCCCCCCCCCCCCCC(=O)OCC=C(C)C=CC=C(C)C=CC1=C(CCCC1(C)C)C
| PubChem CID | 5280531 |
|---|---|
| CAS | 79-81-2 |
| Molecular Weight (g/mol) | 524.874 |
| ChEBI | CHEBI:17616 |
| MDL Number | MFCD00019414 |
| SMILES | CCCCCCCCCCCCCCCC(=O)OCC=C(C)C=CC=C(C)C=CC1=C(CCCC1(C)C)C |
| Synonym | retinyl palmitate,vitamin a palmitate,retinol palmitate,retinol, hexadecanoate,arovit,all-trans-retinyl palmitate,optovit-a,retinyl hexadecanoate,aquapalm,dispatabs tabs |
| IUPAC Name | [(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenyl] hexadecanoate |
| InChI Key | VYGQUTWHTHXGQB-FFHKNEKCSA-N |
| Molecular Formula | C36H60O2 |
L-Menthone, 97%
CAS: 14073-97-3 Molecular Formula: C10H18O Molecular Weight (g/mol): 154.25 MDL Number: MFCD00001634,MFCD00136033 InChI Key: NFLGAXVYCFJBMK-BDAKNGLRSA-N Synonym: --menthone,l-menthone,menthone,trans-menthone,p-menthone,neomenthone,menthone racemic,trans-p-menthan-3-one,2s,5r-2-isopropyl-5-methylcyclohexanone,l-menthan-3-one PubChem CID: 26447 ChEBI: CHEBI:15410 IUPAC Name: (2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-one SMILES: CC(C)[C@@H]1CC[C@@H](C)CC1=O
| PubChem CID | 26447 |
|---|---|
| CAS | 14073-97-3 |
| Molecular Weight (g/mol) | 154.25 |
| ChEBI | CHEBI:15410 |
| MDL Number | MFCD00001634,MFCD00136033 |
| SMILES | CC(C)[C@@H]1CC[C@@H](C)CC1=O |
| Synonym | --menthone,l-menthone,menthone,trans-menthone,p-menthone,neomenthone,menthone racemic,trans-p-menthan-3-one,2s,5r-2-isopropyl-5-methylcyclohexanone,l-menthan-3-one |
| IUPAC Name | (2S,5R)-5-methyl-2-propan-2-ylcyclohexan-1-one |
| InChI Key | NFLGAXVYCFJBMK-BDAKNGLRSA-N |
| Molecular Formula | C10H18O |