Organic acids and derivatives
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N-Carbethoxyphthalimide, 99+%
CAS: 22509-74-6 Molecular Formula: C11H9NO4 Molecular Weight (g/mol): 219.2 MDL Number: MFCD00005893 InChI Key: VRHAQNTWKSVEEC-UHFFFAOYSA-N Synonym: n-carbethoxyphthalimide,n-ethoxycarbonylphthalimide,n-carboethoxyphthalimide,phthalimide-n-carbethoxy,ethyl n-phthaloylcarbamate,n-ethoxycarbonyl phthalimide,2h-isoindole-2-carboxylic acid, 1,3-dihydro-1,3-dioxo-, ethyl ester,ethyl 1,3-dioxoisoindoline-2-carboxylate,n-karbetoksi-ftalimid,2-isoindolinecarboxylic acid, 1,3-dioxo-, ethyl ester PubChem CID: 31187 IUPAC Name: ethyl 1,3-dioxoisoindole-2-carboxylate SMILES: CCOC(=O)N1C(=O)C2=CC=CC=C2C1=O
| PubChem CID | 31187 |
|---|---|
| CAS | 22509-74-6 |
| Molecular Weight (g/mol) | 219.2 |
| MDL Number | MFCD00005893 |
| SMILES | CCOC(=O)N1C(=O)C2=CC=CC=C2C1=O |
| Synonym | n-carbethoxyphthalimide,n-ethoxycarbonylphthalimide,n-carboethoxyphthalimide,phthalimide-n-carbethoxy,ethyl n-phthaloylcarbamate,n-ethoxycarbonyl phthalimide,2h-isoindole-2-carboxylic acid, 1,3-dihydro-1,3-dioxo-, ethyl ester,ethyl 1,3-dioxoisoindoline-2-carboxylate,n-karbetoksi-ftalimid,2-isoindolinecarboxylic acid, 1,3-dioxo-, ethyl ester |
| IUPAC Name | ethyl 1,3-dioxoisoindole-2-carboxylate |
| InChI Key | VRHAQNTWKSVEEC-UHFFFAOYSA-N |
| Molecular Formula | C11H9NO4 |
Diethyl chloromalonate, 90%
CAS: 14064-10-9 Molecular Formula: C7H11ClO4 Molecular Weight (g/mol): 194.61 InChI Key: WLWCQKMQYZFTDR-UHFFFAOYSA-N Synonym: diethyl chloromalonate,diethyl 2-chloromalonate,ethyl chloromalonate,ethylmonochloromalonate,propanedioic acid, chloro-, diethyl ester,chloromalonic acid, diethyl ester,diethyl chloropropanedioate,malonic acid, chloro-, diethyl ester,1,3-diethyl 2-chloropropanedioate,propanedioic acid, 2-chloro-, 1,3-diethyl ester PubChem CID: 84182 IUPAC Name: diethyl 2-chloropropanedioate SMILES: CCOC(=O)C(C(=O)OCC)Cl
| PubChem CID | 84182 |
|---|---|
| CAS | 14064-10-9 |
| Molecular Weight (g/mol) | 194.61 |
| SMILES | CCOC(=O)C(C(=O)OCC)Cl |
| Synonym | diethyl chloromalonate,diethyl 2-chloromalonate,ethyl chloromalonate,ethylmonochloromalonate,propanedioic acid, chloro-, diethyl ester,chloromalonic acid, diethyl ester,diethyl chloropropanedioate,malonic acid, chloro-, diethyl ester,1,3-diethyl 2-chloropropanedioate,propanedioic acid, 2-chloro-, 1,3-diethyl ester |
| IUPAC Name | diethyl 2-chloropropanedioate |
| InChI Key | WLWCQKMQYZFTDR-UHFFFAOYSA-N |
| Molecular Formula | C7H11ClO4 |
Cyclobutanecarboxylic acid, 98%
CAS: 3721-95-7 Molecular Formula: C5H8O2 Molecular Weight (g/mol): 100.12 MDL Number: MFCD00001323 InChI Key: TXWOGHSRPAYOML-UHFFFAOYSA-N Synonym: cyclobutylcarboxylic acid,cyclo-butyl formic acid,cyclobutane carboxylic acid,unii-0rdj7c51o0,pubchem14139,acmc-1cnqb,cyclobutan carboxylic acid,cyclobutyl carboxylic acid,cyclobutancecarboxylic acid,cyclobutane-carboxylic acid PubChem CID: 19494 IUPAC Name: cyclobutanecarboxylic acid SMILES: OC(=O)C1CCC1
| PubChem CID | 19494 |
|---|---|
| CAS | 3721-95-7 |
| Molecular Weight (g/mol) | 100.12 |
| MDL Number | MFCD00001323 |
| SMILES | OC(=O)C1CCC1 |
| Synonym | cyclobutylcarboxylic acid,cyclo-butyl formic acid,cyclobutane carboxylic acid,unii-0rdj7c51o0,pubchem14139,acmc-1cnqb,cyclobutan carboxylic acid,cyclobutyl carboxylic acid,cyclobutancecarboxylic acid,cyclobutane-carboxylic acid |
| IUPAC Name | cyclobutanecarboxylic acid |
| InChI Key | TXWOGHSRPAYOML-UHFFFAOYSA-N |
| Molecular Formula | C5H8O2 |
Copper(II) cyclohexanebutyrate, AAS, Cu 15.8%
CAS: 2218-80-6 Molecular Formula: C20H36CuO4 Molecular Weight (g/mol): 404.05 MDL Number: MFCD00036399 InChI Key: ZGMZTUJLZVTXNR-UHFFFAOYSA-N Synonym: cyclohexanebutyric acid, copper salt PubChem CID: 131876184 IUPAC Name: copper;4-cyclohexylbutanoic acid SMILES: C1CCC(CC1)CCCC(=O)O.C1CCC(CC1)CCCC(=O)O.[Cu]
| PubChem CID | 131876184 |
|---|---|
| CAS | 2218-80-6 |
| Molecular Weight (g/mol) | 404.05 |
| MDL Number | MFCD00036399 |
| SMILES | C1CCC(CC1)CCCC(=O)O.C1CCC(CC1)CCCC(=O)O.[Cu] |
| Synonym | cyclohexanebutyric acid, copper salt |
| IUPAC Name | copper;4-cyclohexylbutanoic acid |
| InChI Key | ZGMZTUJLZVTXNR-UHFFFAOYSA-N |
| Molecular Formula | C20H36CuO4 |
Methyl 4-(methylsulfonylmethyl)benzoate, 98%
CAS: 160446-22-0 Molecular Formula: C10H12O4S Molecular Weight (g/mol): 228.262 MDL Number: MFCD00051693 InChI Key: XCKJFFWCTKJUKD-UHFFFAOYSA-N Synonym: methyl 4-methylsulfonylmethyl benzoate,methyl 4-methanesulfonylmethyl benzoate,methyl 4-methylsulfonyl methyl benzoate,benzoic acid, 4-methylsulfonyl methyl-, methyl ester,acmc-20akgt,maybridge1_002811,methyl 4-methanesulphonylmethyl benzoate PubChem CID: 2804364 IUPAC Name: methyl 4-(methylsulfonylmethyl)benzoate SMILES: COC(=O)C1=CC=C(C=C1)CS(=O)(=O)C
| PubChem CID | 2804364 |
|---|---|
| CAS | 160446-22-0 |
| Molecular Weight (g/mol) | 228.262 |
| MDL Number | MFCD00051693 |
| SMILES | COC(=O)C1=CC=C(C=C1)CS(=O)(=O)C |
| Synonym | methyl 4-methylsulfonylmethyl benzoate,methyl 4-methanesulfonylmethyl benzoate,methyl 4-methylsulfonyl methyl benzoate,benzoic acid, 4-methylsulfonyl methyl-, methyl ester,acmc-20akgt,maybridge1_002811,methyl 4-methanesulphonylmethyl benzoate |
| IUPAC Name | methyl 4-(methylsulfonylmethyl)benzoate |
| InChI Key | XCKJFFWCTKJUKD-UHFFFAOYSA-N |
| Molecular Formula | C10H12O4S |
4-Hydroxy-6-methyl-2-pyrone, 98%
CAS: 675-10-5 Molecular Formula: C6H6O3 Molecular Weight (g/mol): 126.11 MDL Number: MFCD00006641,MFCD18820248 InChI Key: OOKCZXGEYPSNIM-UHFFFAOYSA-N Synonym: 4-hydroxy-6-methyl-2-pyrone,2-hydroxy-6-methyl-4h-pyran-4-one,4-hydroxy-6-methyl-2h-pyran-2-one,triacetic acid lactone,triacetate lactone,2h-pyran-2-one, 4-hydroxy-6-methyl,6-methyl-4-hydroxypyron-2,unii-s1s883s4ee,6-methyl-4-hydroxy-2-pyrone,ccris 3600 PubChem CID: 54675757 ChEBI: CHEBI:16458 IUPAC Name: 4-hydroxy-6-methylpyran-2-one SMILES: CC1=CC(=O)C=C(O)O1
| PubChem CID | 54675757 |
|---|---|
| CAS | 675-10-5 |
| Molecular Weight (g/mol) | 126.11 |
| ChEBI | CHEBI:16458 |
| MDL Number | MFCD00006641,MFCD18820248 |
| SMILES | CC1=CC(=O)C=C(O)O1 |
| Synonym | 4-hydroxy-6-methyl-2-pyrone,2-hydroxy-6-methyl-4h-pyran-4-one,4-hydroxy-6-methyl-2h-pyran-2-one,triacetic acid lactone,triacetate lactone,2h-pyran-2-one, 4-hydroxy-6-methyl,6-methyl-4-hydroxypyron-2,unii-s1s883s4ee,6-methyl-4-hydroxy-2-pyrone,ccris 3600 |
| IUPAC Name | 4-hydroxy-6-methylpyran-2-one |
| InChI Key | OOKCZXGEYPSNIM-UHFFFAOYSA-N |
| Molecular Formula | C6H6O3 |
Tri-O-acetyl-D-glucal, 99%
CAS: 2873-29-2 Molecular Formula: C12H16O7 Molecular Weight (g/mol): 272.25 MDL Number: MFCD00063253 InChI Key: LLPWGHLVUPBSLP-UTUOFQBUSA-N Synonym: tri-o-acetyl-d-glucal,3,4,6-tri-o-acetyl-d-glucal,2r,3s,4r-2-acetoxymethyl-3,4-dihydro-2h-pyran-3,4-diyl diacetate,d-glucal triacetate,3,4,6-tri-o-acetyl-1,5-anhydro-2-deoxy-d-arabino-hex-1-enitol,arabino-hex-1-enitol, 1,5-anhydro-2-deoxy-, triacetate,tri-o-acetylglucal,triacetyl-d-glucal,2r,3s,4r-3,4-bis acetyloxy-3,4-dihydro-2h-pyran-2-yl methyl acetate,tri-o-acetyl-glucal PubChem CID: 688303 IUPAC Name: [(2R,3S,4R)-3,4-diacetyloxy-3,4-dihydro-2H-pyran-2-yl]methyl acetate SMILES: CC(=O)OCC1C(C(C=CO1)OC(=O)C)OC(=O)C
| PubChem CID | 688303 |
|---|---|
| CAS | 2873-29-2 |
| Molecular Weight (g/mol) | 272.25 |
| MDL Number | MFCD00063253 |
| SMILES | CC(=O)OCC1C(C(C=CO1)OC(=O)C)OC(=O)C |
| Synonym | tri-o-acetyl-d-glucal,3,4,6-tri-o-acetyl-d-glucal,2r,3s,4r-2-acetoxymethyl-3,4-dihydro-2h-pyran-3,4-diyl diacetate,d-glucal triacetate,3,4,6-tri-o-acetyl-1,5-anhydro-2-deoxy-d-arabino-hex-1-enitol,arabino-hex-1-enitol, 1,5-anhydro-2-deoxy-, triacetate,tri-o-acetylglucal,triacetyl-d-glucal,2r,3s,4r-3,4-bis acetyloxy-3,4-dihydro-2h-pyran-2-yl methyl acetate,tri-o-acetyl-glucal |
| IUPAC Name | [(2R,3S,4R)-3,4-diacetyloxy-3,4-dihydro-2H-pyran-2-yl]methyl acetate |
| InChI Key | LLPWGHLVUPBSLP-UTUOFQBUSA-N |
| Molecular Formula | C12H16O7 |
2-Mercaptopropionic acid, 95%
CAS: 79-42-5 Molecular Formula: C3H6O2S Molecular Weight (g/mol): 106.14 MDL Number: MFCD00004862 InChI Key: PMNLUUOXGOOLSP-UHFFFAOYNA-N Synonym: 2-mercaptopropionic acid,thiolactic acid,2-mercaptopropanoic acid,2-thiolactic acid,2-thiolpropionic acid,alpha-mercaptopropionic acid,alpha-mercaptopropanoic acid,propionic acid, 2-mercapto,propanoic acid, 2-mercapto,fema no. 3180 PubChem CID: 62326 ChEBI: CHEBI:47872 IUPAC Name: 2-sulfanylpropanoic acid SMILES: CC(S)C(O)=O
| PubChem CID | 62326 |
|---|---|
| CAS | 79-42-5 |
| Molecular Weight (g/mol) | 106.14 |
| ChEBI | CHEBI:47872 |
| MDL Number | MFCD00004862 |
| SMILES | CC(S)C(O)=O |
| Synonym | 2-mercaptopropionic acid,thiolactic acid,2-mercaptopropanoic acid,2-thiolactic acid,2-thiolpropionic acid,alpha-mercaptopropionic acid,alpha-mercaptopropanoic acid,propionic acid, 2-mercapto,propanoic acid, 2-mercapto,fema no. 3180 |
| IUPAC Name | 2-sulfanylpropanoic acid |
| InChI Key | PMNLUUOXGOOLSP-UHFFFAOYNA-N |
| Molecular Formula | C3H6O2S |
4-Methoxybenzamide, 97%
CAS: 3424-93-9 Molecular Formula: C8H9NO2 Molecular Weight (g/mol): 151.16 MDL Number: MFCD00007995 InChI Key: GUCPYIYFQVTFSI-UHFFFAOYSA-N Synonym: p-anisamide,p-methoxybenzamide,benzamide, 4-methoxy,4-methoxy benzamide,p-methyoxybenzamide,unii-z85fx3977e,4-methoxy-benzamide,4-anisamide,acmc-1cjjo,4-methoxylbenzamide PubChem CID: 76959 IUPAC Name: 4-methoxybenzamide SMILES: COC1=CC=C(C=C1)C(=O)N
| PubChem CID | 76959 |
|---|---|
| CAS | 3424-93-9 |
| Molecular Weight (g/mol) | 151.16 |
| MDL Number | MFCD00007995 |
| SMILES | COC1=CC=C(C=C1)C(=O)N |
| Synonym | p-anisamide,p-methoxybenzamide,benzamide, 4-methoxy,4-methoxy benzamide,p-methyoxybenzamide,unii-z85fx3977e,4-methoxy-benzamide,4-anisamide,acmc-1cjjo,4-methoxylbenzamide |
| IUPAC Name | 4-methoxybenzamide |
| InChI Key | GUCPYIYFQVTFSI-UHFFFAOYSA-N |
| Molecular Formula | C8H9NO2 |
Methyl cyclopropanecarboxylate, 98%
CAS: 2868-37-3 Molecular Formula: C5H8O2 Molecular Weight (g/mol): 100.12 MDL Number: MFCD00001280 InChI Key: PKAHQJNJPDVTDP-UHFFFAOYSA-N Synonym: methyl cyclopropane carboxylate,cyclopropanecarboxylic acid, methyl ester,methylcyclopropanecarboxylate,cyclopropanecarboxylic acid methyl ester,methyl cyclopropylcarboxylate,unii-5uq53f585u,mcpc,pubchem11835,ksc490a7l,1-methylcyclopropanecarboxylate PubChem CID: 76122 IUPAC Name: methyl cyclopropanecarboxylate SMILES: COC(=O)C1CC1
| PubChem CID | 76122 |
|---|---|
| CAS | 2868-37-3 |
| Molecular Weight (g/mol) | 100.12 |
| MDL Number | MFCD00001280 |
| SMILES | COC(=O)C1CC1 |
| Synonym | methyl cyclopropane carboxylate,cyclopropanecarboxylic acid, methyl ester,methylcyclopropanecarboxylate,cyclopropanecarboxylic acid methyl ester,methyl cyclopropylcarboxylate,unii-5uq53f585u,mcpc,pubchem11835,ksc490a7l,1-methylcyclopropanecarboxylate |
| IUPAC Name | methyl cyclopropanecarboxylate |
| InChI Key | PKAHQJNJPDVTDP-UHFFFAOYSA-N |
| Molecular Formula | C5H8O2 |
Chloroacetic acid, 99%
CAS: 79-11-8 Molecular Formula: C2H3ClO2 Molecular Weight (g/mol): 94.494 MDL Number: MFCD00002683 InChI Key: FOCAUTSVDIKZOP-UHFFFAOYSA-N Synonym: chloroacetic acid,monochloroacetic acid,chloracetic acid,acetic acid, chloro,acide chloracetique,chloroethanoic acid,monochloroethanoic acid,monochloracetic acid,monochloorazijnzuur,monochloressigsaeure PubChem CID: 300 ChEBI: CHEBI:27869 IUPAC Name: 2-chloroacetic acid SMILES: C(C(=O)O)Cl
| PubChem CID | 300 |
|---|---|
| CAS | 79-11-8 |
| Molecular Weight (g/mol) | 94.494 |
| ChEBI | CHEBI:27869 |
| MDL Number | MFCD00002683 |
| SMILES | C(C(=O)O)Cl |
| Synonym | chloroacetic acid,monochloroacetic acid,chloracetic acid,acetic acid, chloro,acide chloracetique,chloroethanoic acid,monochloroethanoic acid,monochloracetic acid,monochloorazijnzuur,monochloressigsaeure |
| IUPAC Name | 2-chloroacetic acid |
| InChI Key | FOCAUTSVDIKZOP-UHFFFAOYSA-N |
| Molecular Formula | C2H3ClO2 |
Diethyl Ethoxymethylenemalonate, 99+%
CAS: 87-13-8 Molecular Formula: C10H16O5 Molecular Weight (g/mol): 216.23 MDL Number: MFCD00009148 InChI Key: LTMHNWPUDSTBKD-UHFFFAOYSA-N Synonym: diethyl ethoxymethylenemalonate,diethyl 2-ethoxymethylene malonate,ethoxymethylenemalonic acid diethyl ester,diethyl ethoxymethylene malonate,diethyl emme,propanedioic acid, ethoxymethylene-, diethyl ester,diethylethoxymethylenemalonate,1,3-diethyl 2-ethoxymethylidene propanedioate,diethyl ethoxymethylidene propanedioate PubChem CID: 6871 IUPAC Name: diethyl 2-(ethoxymethylidene)propanedioate SMILES: CCOC=C(C(=O)OCC)C(=O)OCC
| PubChem CID | 6871 |
|---|---|
| CAS | 87-13-8 |
| Molecular Weight (g/mol) | 216.23 |
| MDL Number | MFCD00009148 |
| SMILES | CCOC=C(C(=O)OCC)C(=O)OCC |
| Synonym | diethyl ethoxymethylenemalonate,diethyl 2-ethoxymethylene malonate,ethoxymethylenemalonic acid diethyl ester,diethyl ethoxymethylene malonate,diethyl emme,propanedioic acid, ethoxymethylene-, diethyl ester,diethylethoxymethylenemalonate,1,3-diethyl 2-ethoxymethylidene propanedioate,diethyl ethoxymethylidene propanedioate |
| IUPAC Name | diethyl 2-(ethoxymethylidene)propanedioate |
| InChI Key | LTMHNWPUDSTBKD-UHFFFAOYSA-N |
| Molecular Formula | C10H16O5 |
tert-Butylacetic Acid, 98%
CAS: 1070-83-3 Molecular Formula: C6H12O2 Molecular Weight (g/mol): 116.16 MDL Number: MFCD00002715 InChI Key: MLMQPDHYNJCQAO-UHFFFAOYSA-N Synonym: 3,3-dimethylbutyric acid,tert-butylacetic acid,t-butylacetic acid,butanoic acid, 3,3-dimethyl,3,3-dimethyl-butanoic acid,unii-q80k0tzq55,butyric acid, 3,3-dimethyl,3,3-dimethyl-butyric acid,3,3-dimethyl-n-butyric acid,tert-butyric acid PubChem CID: 14057 ChEBI: CHEBI:38647 IUPAC Name: 3,3-dimethylbutanoic acid SMILES: CC(C)(C)CC(=O)O
| PubChem CID | 14057 |
|---|---|
| CAS | 1070-83-3 |
| Molecular Weight (g/mol) | 116.16 |
| ChEBI | CHEBI:38647 |
| MDL Number | MFCD00002715 |
| SMILES | CC(C)(C)CC(=O)O |
| Synonym | 3,3-dimethylbutyric acid,tert-butylacetic acid,t-butylacetic acid,butanoic acid, 3,3-dimethyl,3,3-dimethyl-butanoic acid,unii-q80k0tzq55,butyric acid, 3,3-dimethyl,3,3-dimethyl-butyric acid,3,3-dimethyl-n-butyric acid,tert-butyric acid |
| IUPAC Name | 3,3-dimethylbutanoic acid |
| InChI Key | MLMQPDHYNJCQAO-UHFFFAOYSA-N |
| Molecular Formula | C6H12O2 |
4-Nitrophenyl phosphate, disodium salt, hexahydrate, 98+%
CAS: 333338-18-4 Molecular Formula: C6H4NNa2O6P Molecular Weight (g/mol): 263.05 MDL Number: MFCD00007319 InChI Key: VIYFPAMJCJLZKD-UHFFFAOYSA-L Synonym: pnpp,disodium 4-nitrophenylphosphate,sodium 4-nitrophenyl phosphate,disodium 4-nitrophenyl phosphate,phosphoric acid, mono 4-nitrophenyl ester, disodium salt,disodium p-nitrophenyl phosphate,phosphoric acid, mono 4-nitrophenyl ester, sodium salt 1:2,p-nitrophenyl phosphate,pnpp liquid substrate system PubChem CID: 77949 IUPAC Name: disodium;(4-nitrophenyl) phosphate SMILES: [Na+].[Na+].[O-][N+](=O)C1=CC=C(OP([O-])([O-])=O)C=C1
| PubChem CID | 77949 |
|---|---|
| CAS | 333338-18-4 |
| Molecular Weight (g/mol) | 263.05 |
| MDL Number | MFCD00007319 |
| SMILES | [Na+].[Na+].[O-][N+](=O)C1=CC=C(OP([O-])([O-])=O)C=C1 |
| Synonym | pnpp,disodium 4-nitrophenylphosphate,sodium 4-nitrophenyl phosphate,disodium 4-nitrophenyl phosphate,phosphoric acid, mono 4-nitrophenyl ester, disodium salt,disodium p-nitrophenyl phosphate,phosphoric acid, mono 4-nitrophenyl ester, sodium salt 1:2,p-nitrophenyl phosphate,pnpp liquid substrate system |
| IUPAC Name | disodium;(4-nitrophenyl) phosphate |
| InChI Key | VIYFPAMJCJLZKD-UHFFFAOYSA-L |
| Molecular Formula | C6H4NNa2O6P |
Dimethyl acetylmethylphosphonate, 97%
CAS: 4202-14-6 Molecular Formula: C5H11O4P Molecular Weight (g/mol): 166.113 MDL Number: MFCD00008769 InChI Key: UOWIYNWMROWVDG-UHFFFAOYSA-N Synonym: dimethyl 2-oxopropyl phosphonate,dimethyl acetylmethylphosphonate,dimethyl 2-oxopropylphosphonate,dimethyl acetonylphosphonate,2-oxopropyl phosphonic acid dimethyl ester,1-dimethoxycarbonyl acetone,acmc-209jmw,dimethoxyphosphoryl acetone PubChem CID: 77872 IUPAC Name: 1-dimethoxyphosphorylpropan-2-one SMILES: CC(=O)CP(=O)(OC)OC
| PubChem CID | 77872 |
|---|---|
| CAS | 4202-14-6 |
| Molecular Weight (g/mol) | 166.113 |
| MDL Number | MFCD00008769 |
| SMILES | CC(=O)CP(=O)(OC)OC |
| Synonym | dimethyl 2-oxopropyl phosphonate,dimethyl acetylmethylphosphonate,dimethyl 2-oxopropylphosphonate,dimethyl acetonylphosphonate,2-oxopropyl phosphonic acid dimethyl ester,1-dimethoxycarbonyl acetone,acmc-209jmw,dimethoxyphosphoryl acetone |
| IUPAC Name | 1-dimethoxyphosphorylpropan-2-one |
| InChI Key | UOWIYNWMROWVDG-UHFFFAOYSA-N |
| Molecular Formula | C5H11O4P |