Organiska syreföreningar
Filtrerade sökresultat
Thermo Scientific Chemicals D-(+)-maltosmonohydrat, 95 %
CAS: 6363-53-7 Molekylformel: C12H24O12 Molekylvikt (g/mol): 360.31 MDL-nummer: MFCD00149343 InChI-nyckel: HBDJFVFTHLOSDW-UHFFFAOYNA-N Synonym: d-+-maltose monohydrate,unii-dm477ee40d,2r,3r,4r,5r-2,3,5,6-tetrahydroxy-4-2r,3r,4s,5s,6r-3,4,5-trihydroxy-6-hydroxymethyl oxan-2-yl oxy hexanal hydrate,beta-maltose monohydrate,d-+-maltosemonohydrate,69-79-4 anhydrous,d +-maltose monohydrate,d-+-maltose monohydrate, puriss.,d-+-maltose monohydrate, analytical standard,d-+-maltose monohydrate, bioxtra IUPAC-namn: 2,3,5,6-tetrahydroxi-4-{[3,4,5-trihydroxi-6-(hydroximetyl)oxan-2-yl]oxi}hexanalhydrat LEDER: O.OCC(O)C(OC1OC(CO)C(O)C(O)C1O)C(O)C(O)C=O
| Molekylformel | C12H24O12 |
|---|---|
| MDL-nummer | MFCD00149343 |
| IUPAC-namn | 2,3,5,6-tetrahydroxi-4-{[3,4,5-trihydroxi-6-(hydroximetyl)oxan-2-yl]oxi}hexanalhydrat |
| CAS | 6363-53-7 |
| InChI-nyckel | HBDJFVFTHLOSDW-UHFFFAOYNA-N |
| LEDER | O.OCC(O)C(OC1OC(CO)C(O)C(O)C1O)C(O)C(O)C=O |
| Molekylvikt (g/mol) | 360.31 |
| Synonym | d-+-maltose monohydrate,unii-dm477ee40d,2r,3r,4r,5r-2,3,5,6-tetrahydroxy-4-2r,3r,4s,5s,6r-3,4,5-trihydroxy-6-hydroxymethyl oxan-2-yl oxy hexanal hydrate,beta-maltose monohydrate,d-+-maltosemonohydrate,69-79-4 anhydrous,d +-maltose monohydrate,d-+-maltose monohydrate, puriss.,d-+-maltose monohydrate, analytical standard,d-+-maltose monohydrate, bioxtra |
Trolox(R), 97 %, Thermo Scientific Chemicals
CAS: 53188-07-1 Molekylformel: C14H18O4 Molekylvikt (g/mol): 250.29 MDL-nummer: MFCD00006846 InChI-nyckel: GLEVLJDDWXEYCO-UHFFFAOYNA-N Synonym: trolox,6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid,trolox c,3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-2h-1-benzopyran-2-carboxylic acid,6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid,2h-1-benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl,+/--6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid,2h-1-benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-, +-,trolox™,trolox tm PubChem CID: 40634 ChEBI: CHEBI:82625 IUPAC-namn: 6-hydroxi-2,5,7,8-tetrametyl-3,4-dihydrokromen-2-karboxylsyra LEDER: CC1=C(C)C2=C(CCC(C)(O2)C(O)=O)C(C)=C1O
| Molekylformel | C14H18O4 |
|---|---|
| PubChem CID | 40634 |
| MDL-nummer | MFCD00006846 |
| IUPAC-namn | 6-hydroxi-2,5,7,8-tetrametyl-3,4-dihydrokromen-2-karboxylsyra |
| CAS | 53188-07-1 |
| InChI-nyckel | GLEVLJDDWXEYCO-UHFFFAOYNA-N |
| LEDER | CC1=C(C)C2=C(CCC(C)(O2)C(O)=O)C(C)=C1O |
| ChEBI | CHEBI:82625 |
| Molekylvikt (g/mol) | 250.29 |
| Synonym | trolox,6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid,trolox c,3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-2h-1-benzopyran-2-carboxylic acid,6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid,2h-1-benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl,+/--6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid,2h-1-benzopyran-2-carboxylic acid, 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-, +-,trolox™,trolox tm |
Dietylenglykol, certifierad AR för analys, Fisher Chemical™
CAS: 111-46-6 Molekylformel: C4H10O3 Molekylvikt (g/mol): 106.12 MDL-nummer: MFCD00002882 InChI-nyckel: MTHSVFCYNBDYFN-UHFFFAOYSA-N Synonym: diethylene glycol,2,2'-oxydiethanol,diglycol,diethylenglykol,2-hydroxyethyl ether,bis 2-hydroxyethyl ether,ethanol, 2,2'-oxybis,2,2'-oxybisethanol,2-2-hydroxyethoxy ethanol,digol PubChem CID: 8117 ChEBI: CHEBI:46807 IUPAC-namn: 2-(2-hydroxietoxi)etanol LEDER: OCCOCCO
| Molekylformel | C4H10O3 |
|---|---|
| PubChem CID | 8117 |
| MDL-nummer | MFCD00002882 |
| IUPAC-namn | 2-(2-hydroxietoxi)etanol |
| CAS | 111-46-6 |
| InChI-nyckel | MTHSVFCYNBDYFN-UHFFFAOYSA-N |
| LEDER | OCCOCCO |
| ChEBI | CHEBI:46807 |
| Molekylvikt (g/mol) | 106.12 |
| Synonym | diethylene glycol,2,2'-oxydiethanol,diglycol,diethylenglykol,2-hydroxyethyl ether,bis 2-hydroxyethyl ether,ethanol, 2,2'-oxybis,2,2'-oxybisethanol,2-2-hydroxyethoxy ethanol,digol |
Isatin, 98%
CAS: 91-56-5 Molekylformel: C8H5NO2 Molekylvikt (g/mol): 147.13 MDL-nummer: MFCD00005718 InChI-nyckel: JXDYKVIHCLTXOP-UHFFFAOYSA-N Synonym: isatin,indoline-2,3-dione,2,3-indolinedione,indole-2,3-dione,isatine,2,3-dioxoindoline,pseudoisatin,tribulin,isotin,isatic acid lactam PubChem CID: 7054 ChEBI: CHEBI:27539 IUPAC-namn: lH-indol-2,3-dion LEDER: C1=CC=C2C(=C1)C(=O)C(=O)N2
| Molekylformel | C8H5NO2 |
|---|---|
| PubChem CID | 7054 |
| MDL-nummer | MFCD00005718 |
| IUPAC-namn | lH-indol-2,3-dion |
| CAS | 91-56-5 |
| InChI-nyckel | JXDYKVIHCLTXOP-UHFFFAOYSA-N |
| LEDER | C1=CC=C2C(=C1)C(=O)C(=O)N2 |
| ChEBI | CHEBI:27539 |
| Molekylvikt (g/mol) | 147.13 |
| Synonym | isatin,indoline-2,3-dione,2,3-indolinedione,indole-2,3-dione,isatine,2,3-dioxoindoline,pseudoisatin,tribulin,isotin,isatic acid lactam |
Trietylenglykol, 99 %, Thermo Scientific Chemicals
CAS: 112-27-6 Molekylformel: C6H14O4 Molekylvikt (g/mol): 150.17 MDL-nummer: MFCD00002880,MFCD00081839,MFCD01779596,MFCD01779599,MFCD01779601,MFCD01779603,MFCD01779605,MFCD01779609,MFCD01779611,MFCD01779612,MFCD01779614,MFCD01779615,MFCD01779616 InChI-nyckel: ZIBGPFATKBEMQZ-UHFFFAOYSA-N Synonym: triethylene glycol,triglycol,2,2'-ethane-1,2-diylbis oxy diethanol,trigen,triethylenglykol,triethyleneglycol,2,2'-ethylenedioxydiethanol,1,2-bis 2-hydroxyethoxy ethane,3,6-dioxaoctane-1,8-diol,2,2'-ethylenedioxy diethanol PubChem CID: 8172 ChEBI: CHEBI:44926 IUPAC-namn: 2-[2-(2-hydroxietoxi)etoxi]etanol LEDER: OCCOCCOCCO
| Molekylformel | C6H14O4 |
|---|---|
| PubChem CID | 8172 |
| MDL-nummer | MFCD00002880,MFCD00081839,MFCD01779596,MFCD01779599,MFCD01779601,MFCD01779603,MFCD01779605,MFCD01779609,MFCD01779611,MFCD01779612,MFCD01779614,MFCD01779615,MFCD01779616 |
| IUPAC-namn | 2-[2-(2-hydroxietoxi)etoxi]etanol |
| CAS | 112-27-6 |
| InChI-nyckel | ZIBGPFATKBEMQZ-UHFFFAOYSA-N |
| LEDER | OCCOCCOCCO |
| ChEBI | CHEBI:44926 |
| Molekylvikt (g/mol) | 150.17 |
| Synonym | triethylene glycol,triglycol,2,2'-ethane-1,2-diylbis oxy diethanol,trigen,triethylenglykol,triethyleneglycol,2,2'-ethylenedioxydiethanol,1,2-bis 2-hydroxyethoxy ethane,3,6-dioxaoctane-1,8-diol,2,2'-ethylenedioxy diethanol |
Thermo Scientific Chemicals D-fruktos, 99 %
CAS: 57-48-7 Molekylformel: C6H12O6 Molekylvikt (g/mol): 180.156 MDL-nummer: MFCD00148910 InChI-nyckel: BJHIKXHVCXFQLS-UYFOZJQFSA-N Synonym: d---fructose,d--fructose,3s,4r,5r-1,3,4,5,6-pentahydroxyhexan-2-one,furucton,arabino-hexulose,keto-d-fructose,d-levulose,sugar, fruit,fructose, d,krystar 300 PubChem CID: 5984 ChEBI: CHEBI:48095 IUPAC-namn: (3S,4R,5R)-1,3,4,5,6-pentahydroxihexan-2-on LEDER: C(C(C(C(C(=O)CO)O)O)O)O
| Molekylformel | C6H12O6 |
|---|---|
| PubChem CID | 5984 |
| MDL-nummer | MFCD00148910 |
| IUPAC-namn | (3S,4R,5R)-1,3,4,5,6-pentahydroxihexan-2-on |
| CAS | 57-48-7 |
| InChI-nyckel | BJHIKXHVCXFQLS-UYFOZJQFSA-N |
| LEDER | C(C(C(C(C(=O)CO)O)O)O)O |
| ChEBI | CHEBI:48095 |
| Molekylvikt (g/mol) | 180.156 |
| Synonym | d---fructose,d--fructose,3s,4r,5r-1,3,4,5,6-pentahydroxyhexan-2-one,furucton,arabino-hexulose,keto-d-fructose,d-levulose,sugar, fruit,fructose, d,krystar 300 |
Etandiol, Extra Pure, SLR, Fisher Chemical™
CAS: 107-21-1 Molekylformel: C2H6O2 Molekylvikt (g/mol): 62.068 MDL-nummer: 2885 InChI-nyckel: LYCAIKOWRPUZTN-UHFFFAOYSA-N Synonym: ethylene glycol,1,2-ethanediol,glycol,monoethylene glycol,1,2-dihydroxyethane,2-hydroxyethanol,glycol alcohol,ethylene alcohol,fridex,tescol PubChem CID: 174 ChEBI: CHEBI:30742 IUPAC-namn: etan-1,2-diol LEDER: C(CO)O
| Molekylformel | C2H6O2 |
|---|---|
| PubChem CID | 174 |
| MDL-nummer | 2885 |
| IUPAC-namn | etan-1,2-diol |
| CAS | 107-21-1 |
| InChI-nyckel | LYCAIKOWRPUZTN-UHFFFAOYSA-N |
| LEDER | C(CO)O |
| ChEBI | CHEBI:30742 |
| Molekylvikt (g/mol) | 62.068 |
| Synonym | ethylene glycol,1,2-ethanediol,glycol,monoethylene glycol,1,2-dihydroxyethane,2-hydroxyethanol,glycol alcohol,ethylene alcohol,fridex,tescol |
18-Crown-6, 99%
CAS: 17455-13-9 Molekylformel: C12H24O6 Molekylvikt (g/mol): 264.32 MDL-nummer: MFCD00005113 InChI-nyckel: XEZNGIUYQVAUSS-UHFFFAOYSA-N Synonym: 18-crown-6,18-crown-6 ether,ethylene oxide cyclic hexamer,18-crown-6-ether,unii-63j177nc5b,ccris 3587,18-crown 6-ether,1,4,7,10,13,16-hexanoxacyclooctadecane,18-crown-6/1,4,7,10,13,16-hexaoxacyclooctadecane PubChem CID: 28557 ChEBI: CHEBI:32397 IUPAC-namn: 1,4,7,10,13,16-hexaoxacyklooktadekan LEDER: C1COCCOCCOCCOCCOCCO1
| Molekylformel | C12H24O6 |
|---|---|
| PubChem CID | 28557 |
| MDL-nummer | MFCD00005113 |
| IUPAC-namn | 1,4,7,10,13,16-hexaoxacyklooktadekan |
| CAS | 17455-13-9 |
| InChI-nyckel | XEZNGIUYQVAUSS-UHFFFAOYSA-N |
| LEDER | C1COCCOCCOCCOCCOCCO1 |
| ChEBI | CHEBI:32397 |
| Molekylvikt (g/mol) | 264.32 |
| Synonym | 18-crown-6,18-crown-6 ether,ethylene oxide cyclic hexamer,18-crown-6-ether,unii-63j177nc5b,ccris 3587,18-crown 6-ether,1,4,7,10,13,16-hexanoxacyclooctadecane,18-crown-6/1,4,7,10,13,16-hexaoxacyclooctadecane |
Phorbol 12-myristat 13-acetat,> 94 %, Thermo Scientific Chemicals
CAS: 16561-29-8 Molekylformel: C36H56O8 Molekylvikt (g/mol): 616.84 MDL-nummer: MFCD00036736 InChI-nyckel: PHEDXBVPIONUQT-RGYGYFBISA-N Synonym: phorbol 12-myristate 13-acetate,phorbol ester,12-o-tetradecanoylphorbol-13-acetate,12-o-tetradecanoylphorbol 13-acetate,factor a1,tetradecanoylphorbol acetate,12-tetradecanoylphorbol 13-acetate,factor a1 croton oil,phorbol 13-acetate 12-myristate,phorbol-12-myristate-13-acetate PubChem CID: 27924 ChEBI: CHEBI:37537 IUPAC-namn: (1S,2S,6R,10S,11R,13S,14R,15R)-13-(acetyloxi)-1,6-dihydroxi-8-(hydroximetyl)-4,12,12,15-tetrametyl-5-oxotetracyklo[8.5.0.02,6,013]-1-4,1-3, 1-4, 1-4, 1, 3 tetradekanoat LEDER: CCCCCCCCCCCCCC(=O)O[C@@H]1[C@@H](C)[C@]2(O)[C@@H]3C=C(C)C(=O)[C@@]3(O)CC(CO)=C[C@H]2[C@@H]2C(C)(C)[C@]12OC(C)=O
| Molekylformel | C36H56O8 |
|---|---|
| PubChem CID | 27924 |
| MDL-nummer | MFCD00036736 |
| IUPAC-namn | (1S,2S,6R,10S,11R,13S,14R,15R)-13-(acetyloxi)-1,6-dihydroxi-8-(hydroximetyl)-4,12,12,15-tetrametyl-5-oxotetracyklo[8.5.0.02,6,013]-1-4,1-3, 1-4, 1-4, 1, 3 tetradekanoat |
| CAS | 16561-29-8 |
| InChI-nyckel | PHEDXBVPIONUQT-RGYGYFBISA-N |
| LEDER | CCCCCCCCCCCCCC(=O)O[C@@H]1[C@@H](C)[C@]2(O)[C@@H]3C=C(C)C(=O)[C@@]3(O)CC(CO)=C[C@H]2[C@@H]2C(C)(C)[C@]12OC(C)=O |
| ChEBI | CHEBI:37537 |
| Molekylvikt (g/mol) | 616.84 |
| Synonym | phorbol 12-myristate 13-acetate,phorbol ester,12-o-tetradecanoylphorbol-13-acetate,12-o-tetradecanoylphorbol 13-acetate,factor a1,tetradecanoylphorbol acetate,12-tetradecanoylphorbol 13-acetate,factor a1 croton oil,phorbol 13-acetate 12-myristate,phorbol-12-myristate-13-acetate |
5-(hydroximetyl)furfural, 98 %, Thermo Scientific Chemicals
CAS: 67-47-0 Molekylformel: C6H6O3 Molekylvikt (g/mol): 126.11 InChI-nyckel: NOEGNKMFWQHSLB-UHFFFAOYSA-N Synonym: 5-hydroxymethylfurfural,5-hydroxymethyl-2-furaldehyde,5-hydroxymethyl furfural,5-hydroxymethyl furan-2-carbaldehyde,hydroxymethylfurfural,5-hydroxymethyl-2-furfural,5-oxymethylfurfurole,5-hydroxymethylfuraldehyde,hydroxymethylfurfurole PubChem CID: 237332 ChEBI: CHEBI:412516 IUPAC-namn: 5-(hydroximetyl)furan-2-karbaldehyd LEDER: C1=C(OC(=C1)C=O)CO
| Molekylformel | C6H6O3 |
|---|---|
| PubChem CID | 237332 |
| IUPAC-namn | 5-(hydroximetyl)furan-2-karbaldehyd |
| CAS | 67-47-0 |
| InChI-nyckel | NOEGNKMFWQHSLB-UHFFFAOYSA-N |
| LEDER | C1=C(OC(=C1)C=O)CO |
| ChEBI | CHEBI:412516 |
| Molekylvikt (g/mol) | 126.11 |
| Synonym | 5-hydroxymethylfurfural,5-hydroxymethyl-2-furaldehyde,5-hydroxymethyl furfural,5-hydroxymethyl furan-2-carbaldehyde,hydroxymethylfurfural,5-hydroxymethyl-2-furfural,5-oxymethylfurfurole,5-hydroxymethylfuraldehyde,hydroxymethylfurfurole |
Benzil, 99+%
CAS: 134-81-6 Molekylformel: C14H10O2 Molekylvikt (g/mol): 210.23 MDL-nummer: MFCD00003080 InChI-nyckel: WURBFLDFSFBTLW-UHFFFAOYSA-N Synonym: benzil,diphenylethanedione,dibenzoyl,diphenylglyoxal,bibenzoyl,ethanedione, diphenyl,1,2-diphenylethanedione,diphenylethane-1,2-dione,glyoxal, diphenyl,diphenyldiketon PubChem CID: 8651 ChEBI: CHEBI:51507 IUPAC-namn: 1,2-difenyletan-1,2-dion LEDER: O=C(C(=O)C1=CC=CC=C1)C1=CC=CC=C1
| Molekylformel | C14H10O2 |
|---|---|
| PubChem CID | 8651 |
| MDL-nummer | MFCD00003080 |
| IUPAC-namn | 1,2-difenyletan-1,2-dion |
| CAS | 134-81-6 |
| InChI-nyckel | WURBFLDFSFBTLW-UHFFFAOYSA-N |
| LEDER | O=C(C(=O)C1=CC=CC=C1)C1=CC=CC=C1 |
| ChEBI | CHEBI:51507 |
| Molekylvikt (g/mol) | 210.23 |
| Synonym | benzil,diphenylethanedione,dibenzoyl,diphenylglyoxal,bibenzoyl,ethanedione, diphenyl,1,2-diphenylethanedione,diphenylethane-1,2-dione,glyoxal, diphenyl,diphenyldiketon |
1,3-propandiol, 99 %, Thermo Scientific Chemicals
CAS: 504-63-2 Molekylformel: C3H8O2 Molekylvikt (g/mol): 76.10 MDL-nummer: MFCD00002949 InChI-nyckel: YPFDHNVEDLHUCE-UHFFFAOYSA-N Synonym: 1,3-propanediol,trimethylene glycol,1,3-dihydroxypropane,2-deoxyglycerol,1,3-propylene glycol,1,3-propylenediol,1,3-propandiol,2-hydroxymethyl ethanol,omega-propanediol,beta-propylene glycol PubChem CID: 10442 ChEBI: CHEBI:16109 IUPAC-namn: propan-1,3-diol LEDER: OCCCO
| Molekylformel | C3H8O2 |
|---|---|
| PubChem CID | 10442 |
| MDL-nummer | MFCD00002949 |
| IUPAC-namn | propan-1,3-diol |
| CAS | 504-63-2 |
| InChI-nyckel | YPFDHNVEDLHUCE-UHFFFAOYSA-N |
| LEDER | OCCCO |
| ChEBI | CHEBI:16109 |
| Molekylvikt (g/mol) | 76.10 |
| Synonym | 1,3-propanediol,trimethylene glycol,1,3-dihydroxypropane,2-deoxyglycerol,1,3-propylene glycol,1,3-propylenediol,1,3-propandiol,2-hydroxymethyl ethanol,omega-propanediol,beta-propylene glycol |
D(-)-fruktos, specificerad enligt kraven i USP , Thermo Scientific Chemicals
CAS: 57-48-7 Molekylformel: C6H12O6 Molekylvikt (g/mol): 180.16 InChI-nyckel: BJHIKXHVCXFQLS-UYFOZJQFSA-N Synonym: d---fructose,d--fructose,3s,4r,5r-1,3,4,5,6-pentahydroxyhexan-2-one,furucton,arabino-hexulose,keto-d-fructose,d-levulose,sugar, fruit,fructose, d,krystar 300 PubChem CID: 5984 ChEBI: CHEBI:48095 IUPAC-namn: (3S,4R,5R)-1,3,4,5,6-pentahydroxihexan-2-on LEDER: C(C(C(C(C(=O)CO)O)O)O)O
| Molekylformel | C6H12O6 |
|---|---|
| PubChem CID | 5984 |
| IUPAC-namn | (3S,4R,5R)-1,3,4,5,6-pentahydroxihexan-2-on |
| CAS | 57-48-7 |
| InChI-nyckel | BJHIKXHVCXFQLS-UYFOZJQFSA-N |
| LEDER | C(C(C(C(C(=O)CO)O)O)O)O |
| ChEBI | CHEBI:48095 |
| Molekylvikt (g/mol) | 180.16 |
| Synonym | d---fructose,d--fructose,3s,4r,5r-1,3,4,5,6-pentahydroxyhexan-2-one,furucton,arabino-hexulose,keto-d-fructose,d-levulose,sugar, fruit,fructose, d,krystar 300 |
Ethyl acetoacetate, 99+%, extra pure
CAS: 141-97-9 Molekylformel: C6H10O3 Molekylvikt (g/mol): 130.14 MDL-nummer: MFCD00009199 InChI-nyckel: XYIBRDXRRQCHLP-UHFFFAOYSA-N Synonym: ethyl acetoacetate,ethyl acetylacetate,ethyl 3-oxobutyrate,diacetic ether,butanoic acid, 3-oxo-, ethyl ester,ethyl acetylacetonate,acetoacetic acid, ethyl ester,3-oxobutanoic acid ethyl ester,3-oxo-butyric acid ethyl ester,active acetylacetate PubChem CID: 8868 ChEBI: CHEBI:4893 IUPAC-namn: etyl-3-oxobutanoat LEDER: CCOC(=O)CC(=O)C
| Molekylformel | C6H10O3 |
|---|---|
| PubChem CID | 8868 |
| MDL-nummer | MFCD00009199 |
| IUPAC-namn | etyl-3-oxobutanoat |
| CAS | 141-97-9 |
| InChI-nyckel | XYIBRDXRRQCHLP-UHFFFAOYSA-N |
| LEDER | CCOC(=O)CC(=O)C |
| ChEBI | CHEBI:4893 |
| Molekylvikt (g/mol) | 130.14 |
| Synonym | ethyl acetoacetate,ethyl acetylacetate,ethyl 3-oxobutyrate,diacetic ether,butanoic acid, 3-oxo-, ethyl ester,ethyl acetylacetonate,acetoacetic acid, ethyl ester,3-oxobutanoic acid ethyl ester,3-oxo-butyric acid ethyl ester,active acetylacetate |