Organic acids and derivatives
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N-Hydroxyphthalimide, 98%
CAS: 524-38-9 Molecular Formula: C8H5NO3 Molecular Weight (g/mol): 163.13 MDL Number: MFCD00005891 InChI Key: CFMZSMGAMPBRBE-UHFFFAOYSA-N Synonym: n-hydroxyphthalimide,2-hydroxyisoindoline-1,3-dione,2-hydroxy-1h-isoindole-1,3 2h-dione,nhpi,2-hydroxyphthalimide,1h-isoindole-1,3 2h-dione, 2-hydroxy,phthalimide, n-hydroxy,phthaloxime,unii-bxi99m81x0,2-hydroxyisoindolin-1,3-dione PubChem CID: 10665 IUPAC Name: 2-hydroxyisoindole-1,3-dione SMILES: ON1C(=O)C2=CC=CC=C2C1=O
| PubChem CID | 10665 |
|---|---|
| CAS | 524-38-9 |
| Molecular Weight (g/mol) | 163.13 |
| MDL Number | MFCD00005891 |
| SMILES | ON1C(=O)C2=CC=CC=C2C1=O |
| Synonym | n-hydroxyphthalimide,2-hydroxyisoindoline-1,3-dione,2-hydroxy-1h-isoindole-1,3 2h-dione,nhpi,2-hydroxyphthalimide,1h-isoindole-1,3 2h-dione, 2-hydroxy,phthalimide, n-hydroxy,phthaloxime,unii-bxi99m81x0,2-hydroxyisoindolin-1,3-dione |
| IUPAC Name | 2-hydroxyisoindole-1,3-dione |
| InChI Key | CFMZSMGAMPBRBE-UHFFFAOYSA-N |
| Molecular Formula | C8H5NO3 |
N-Isopropylacrylamide, 97%
CAS: 2210-25-5 Molecular Formula: C6H11NO Molecular Weight (g/mol): 113.16 MDL Number: MFCD00041913 InChI Key: QNILTEGFHQSKFF-UHFFFAOYSA-N Synonym: n-isopropylacrylamide,nipam,n-iso-propylacrylamide,2-propenamide, n-1-methylethyl,isopropyl acrylamide,acrylamide, n-isopropyl,n-isopropyl acrylamide,n-1-methylethyl-2-propenamide,isopropylamid kyseliny akrylove,unii-b7gff17l9u PubChem CID: 16637 SMILES: CC(C)NC(=O)C=C
| PubChem CID | 16637 |
|---|---|
| CAS | 2210-25-5 |
| Molecular Weight (g/mol) | 113.16 |
| MDL Number | MFCD00041913 |
| SMILES | CC(C)NC(=O)C=C |
| Synonym | n-isopropylacrylamide,nipam,n-iso-propylacrylamide,2-propenamide, n-1-methylethyl,isopropyl acrylamide,acrylamide, n-isopropyl,n-isopropyl acrylamide,n-1-methylethyl-2-propenamide,isopropylamid kyseliny akrylove,unii-b7gff17l9u |
| InChI Key | QNILTEGFHQSKFF-UHFFFAOYSA-N |
| Molecular Formula | C6H11NO |
2-Ethoxybenzamide, 97%
CAS: 938-73-8 Molecular Formula: C9H11NO2 Molecular Weight (g/mol): 165.19 MDL Number: MFCD00007977 InChI Key: SBNKFTQSBPKMBZ-UHFFFAOYSA-N Synonym: ethenzamide,benzamide, 2-ethoxy,o-ethoxybenzamide,ethbenzamide,etenzamide,ethenzamid,etamide,ethosalicyl,etosalicil,etosalicyl PubChem CID: 3282 IUPAC Name: 2-ethoxybenzamide SMILES: CCOC1=CC=CC=C1C(N)=O
| PubChem CID | 3282 |
|---|---|
| CAS | 938-73-8 |
| Molecular Weight (g/mol) | 165.19 |
| MDL Number | MFCD00007977 |
| SMILES | CCOC1=CC=CC=C1C(N)=O |
| Synonym | ethenzamide,benzamide, 2-ethoxy,o-ethoxybenzamide,ethbenzamide,etenzamide,ethenzamid,etamide,ethosalicyl,etosalicil,etosalicyl |
| IUPAC Name | 2-ethoxybenzamide |
| InChI Key | SBNKFTQSBPKMBZ-UHFFFAOYSA-N |
| Molecular Formula | C9H11NO2 |
Terephthalic dihydrazide, 95%
CAS: 136-64-1 Molecular Formula: C8H10N4O2 Molecular Weight (g/mol): 194.19 MDL Number: MFCD00014762 InChI Key: ALHNLFMSAXZKRC-UHFFFAOYSA-N Synonym: terephthalic dihydrazide,terephthalohydrazide,terephthalic acid dihydrazide,terephthalic hydrazide,1,4-benzenedicarboxylic acid, dihydrazide,terephthaloyl dihydrazide,terephthalic acid bishydrazide,terephthalic acid, dihydrazide,terephthalhydrazide,terephthalicdihydrazide PubChem CID: 67294 IUPAC Name: benzene-1,4-dicarbohydrazide SMILES: NNC(=O)C1=CC=C(C=C1)C(=O)NN
| PubChem CID | 67294 |
|---|---|
| CAS | 136-64-1 |
| Molecular Weight (g/mol) | 194.19 |
| MDL Number | MFCD00014762 |
| SMILES | NNC(=O)C1=CC=C(C=C1)C(=O)NN |
| Synonym | terephthalic dihydrazide,terephthalohydrazide,terephthalic acid dihydrazide,terephthalic hydrazide,1,4-benzenedicarboxylic acid, dihydrazide,terephthaloyl dihydrazide,terephthalic acid bishydrazide,terephthalic acid, dihydrazide,terephthalhydrazide,terephthalicdihydrazide |
| IUPAC Name | benzene-1,4-dicarbohydrazide |
| InChI Key | ALHNLFMSAXZKRC-UHFFFAOYSA-N |
| Molecular Formula | C8H10N4O2 |
O-(endo-5-Norbornene-2,3-dicarboximido)-N,N,N',N'-tetramethyluronium tetrafluoroborate, 98+%
CAS: 125700-73-4 Molecular Formula: C14H20BF4N3O3 Molecular Weight (g/mol): 365.14 MDL Number: MFCD00167753 InChI Key: DMTWWFCCBWWXSA-UHFFFAOYNA-N Synonym: 2-endo-5-norbornene-2,3-dicarboxymido-1,1,3,3-tetramethyluronium tetrafluoroborate,dimethylamino 1r,2s,6r,7s-3,5-dioxo-4-azatricyclo 5.2.1.0_,? dec-8-en-4-yl oxy methylidene dimethylazanium tetrafluoroborate PubChem CID: 91634054 IUPAC Name: [(dimethylamino)({3,5-dioxo-4-azatricyclo[5.2.1.0²,⁶]dec-8-en-4-yl}oxy)methylidene]dimethylazanium; tetrafluoroboranuide SMILES: F[B-](F)(F)F.CN(C)C(ON1C(=O)C2C3CC(C=C3)C2C1=O)=[N+](C)C
| PubChem CID | 91634054 |
|---|---|
| CAS | 125700-73-4 |
| Molecular Weight (g/mol) | 365.14 |
| MDL Number | MFCD00167753 |
| SMILES | F[B-](F)(F)F.CN(C)C(ON1C(=O)C2C3CC(C=C3)C2C1=O)=[N+](C)C |
| Synonym | 2-endo-5-norbornene-2,3-dicarboxymido-1,1,3,3-tetramethyluronium tetrafluoroborate,dimethylamino 1r,2s,6r,7s-3,5-dioxo-4-azatricyclo 5.2.1.0_,? dec-8-en-4-yl oxy methylidene dimethylazanium tetrafluoroborate |
| IUPAC Name | [(dimethylamino)({3,5-dioxo-4-azatricyclo[5.2.1.0²,⁶]dec-8-en-4-yl}oxy)methylidene]dimethylazanium; tetrafluoroboranuide |
| InChI Key | DMTWWFCCBWWXSA-UHFFFAOYNA-N |
| Molecular Formula | C14H20BF4N3O3 |
O-(Benzotriazol-1-yl)-N,N,N',N'-bis(tetramethylene)uronium hexafluorophosphate, 98%, Thermo Scientific™
CAS: 105379-24-6 Molecular Formula: C15H20N5O·F6P Molecular Weight (g/mol): 431.32 InChI Key: XKTRAGMCMJYRRN-UHFFFAOYSA-N Synonym: hbpyu,benzotriazol-1-yloxy dipyrrolidinocarbenium hexafluorophosphate,1h-benzo d 1,2,3 triazol-1-yl di pyrrolidin-1-yl methylene oxonium hexafluorophosphate v,o-benzotriazol-1-yl-n,n,n',n'-bis tetramethylene uronium hexafluorophosphate,hbpyu, o-benzotriazol-1-yl-n,n,n',n'-bis tetramethylene uronium hexafluorophosphate,1-pyrrolidin-1-ium-1-ylidene pyrrolidin-1-yl methoxy benzotriazole hexafluorophosphate,1-1,2,3-benzotriazol-1-yloxy pyrrolidin-1-yl methylidene-1??-pyrrolidin-1-ylium hexafluorophosphate,benzotriazol-1-yloxy dipyrrolidinocarbenium hexaf,1,2,3-benzotriazol-1-yloxy bis pyrrolidin-1-yl methylium hexafluorophosphate,1-1-pyrrolidin-1-iumylidene 1-pyrrolidinyl methoxy benzotriazole hexafluorophosphate PubChem CID: 13685355 IUPAC Name: 1-[pyrrolidin-1-ium-1-ylidene(pyrrolidin-1-yl)methoxy]benzotriazole;hexafluorophosphate SMILES: C1CCN(C1)C(=[N+]2CCCC2)ON3C4=CC=CC=C4N=N3.F[P-](F)(F)(F)(F)F
| PubChem CID | 13685355 |
|---|---|
| CAS | 105379-24-6 |
| Molecular Weight (g/mol) | 431.32 |
| SMILES | C1CCN(C1)C(=[N+]2CCCC2)ON3C4=CC=CC=C4N=N3.F[P-](F)(F)(F)(F)F |
| Synonym | hbpyu,benzotriazol-1-yloxy dipyrrolidinocarbenium hexafluorophosphate,1h-benzo d 1,2,3 triazol-1-yl di pyrrolidin-1-yl methylene oxonium hexafluorophosphate v,o-benzotriazol-1-yl-n,n,n',n'-bis tetramethylene uronium hexafluorophosphate,hbpyu, o-benzotriazol-1-yl-n,n,n',n'-bis tetramethylene uronium hexafluorophosphate,1-pyrrolidin-1-ium-1-ylidene pyrrolidin-1-yl methoxy benzotriazole hexafluorophosphate,1-1,2,3-benzotriazol-1-yloxy pyrrolidin-1-yl methylidene-1??-pyrrolidin-1-ylium hexafluorophosphate,benzotriazol-1-yloxy dipyrrolidinocarbenium hexaf,1,2,3-benzotriazol-1-yloxy bis pyrrolidin-1-yl methylium hexafluorophosphate,1-1-pyrrolidin-1-iumylidene 1-pyrrolidinyl methoxy benzotriazole hexafluorophosphate |
| IUPAC Name | 1-[pyrrolidin-1-ium-1-ylidene(pyrrolidin-1-yl)methoxy]benzotriazole;hexafluorophosphate |
| InChI Key | XKTRAGMCMJYRRN-UHFFFAOYSA-N |
| Molecular Formula | C15H20N5O·F6P |
Ethyl carbamate, 98%
CAS: 51-79-6 Molecular Formula: C3H7NO2 Molecular Weight (g/mol): 89.094 MDL Number: MFCD00007966 InChI Key: JOYRKODLDBILNP-UHFFFAOYSA-N Synonym: urethane,urethan,ethylurethane,carbamic acid ethyl ester,ethyl urethane,carbamic acid, ethyl ester,ethylcarbamate,pracarbamine,leucethane,pracarbamin PubChem CID: 5641 ChEBI: CHEBI:17967 IUPAC Name: ethyl carbamate SMILES: CCOC(=O)N
| PubChem CID | 5641 |
|---|---|
| CAS | 51-79-6 |
| Molecular Weight (g/mol) | 89.094 |
| ChEBI | CHEBI:17967 |
| MDL Number | MFCD00007966 |
| SMILES | CCOC(=O)N |
| Synonym | urethane,urethan,ethylurethane,carbamic acid ethyl ester,ethyl urethane,carbamic acid, ethyl ester,ethylcarbamate,pracarbamine,leucethane,pracarbamin |
| IUPAC Name | ethyl carbamate |
| InChI Key | JOYRKODLDBILNP-UHFFFAOYSA-N |
| Molecular Formula | C3H7NO2 |
chlorodifluoroacetic acid sodium salt, 96%
CAS: 1895-39-2 Molecular Formula: C2ClF2NaO2 Molecular Weight (g/mol): 152.46 MDL Number: MFCD00064771 InChI Key: MRTAVLDNYYEJHK-UHFFFAOYSA-M Synonym: sodium chlorodifluoroacetate,sodium 2-chloro-2,2-difluoroacetate,chlorodifluoroacetic acid sodium salt,sodium chloro difluoro acetate,acetic acid, chlorodifluoro-, sodium salt,sodiumchlorodifluoroacetate,difluorochloroacetic acid sodium salt,sodium difluorochloroacetate,chlorodifluoroacetic acid sodium PubChem CID: 2734985 IUPAC Name: sodium;2-chloro-2,2-difluoroacetate SMILES: C(=O)(C(F)(F)Cl)[O-].[Na+]
| PubChem CID | 2734985 |
|---|---|
| CAS | 1895-39-2 |
| Molecular Weight (g/mol) | 152.46 |
| MDL Number | MFCD00064771 |
| SMILES | C(=O)(C(F)(F)Cl)[O-].[Na+] |
| Synonym | sodium chlorodifluoroacetate,sodium 2-chloro-2,2-difluoroacetate,chlorodifluoroacetic acid sodium salt,sodium chloro difluoro acetate,acetic acid, chlorodifluoro-, sodium salt,sodiumchlorodifluoroacetate,difluorochloroacetic acid sodium salt,sodium difluorochloroacetate,chlorodifluoroacetic acid sodium |
| IUPAC Name | sodium;2-chloro-2,2-difluoroacetate |
| InChI Key | MRTAVLDNYYEJHK-UHFFFAOYSA-M |
| Molecular Formula | C2ClF2NaO2 |
Ethyl 2-bromoisobutyrate, 98+%
CAS: 600-00-0 Molecular Formula: C6H11BrO2 Molecular Weight (g/mol): 195.06 MDL Number: MFCD00000123 InChI Key: IOLQWGVDEFWYNP-UHFFFAOYSA-N Synonym: ethyl 2-bromoisobutyrate,ethyl 2-bromo-2-methylpropionate,ethyl alpha-bromoisobutyrate,ethyl .alpha.-bromoisobutyrate,propanoic acid, 2-bromo-2-methyl-, ethyl ester,2-bromo-2-methylpropanoic acid, ethyl ester,ethyl-2-bromoisobutyrate,propanoic acid, bromo-2-methyl-, ethyl ester,ethyl 2-bromo-2-methyl-propanoate,propionic acid, 2-bromo-2-methyl-, ethyl ester PubChem CID: 11745 IUPAC Name: ethyl 2-bromo-2-methylpropanoate SMILES: CCOC(=O)C(C)(C)Br
| PubChem CID | 11745 |
|---|---|
| CAS | 600-00-0 |
| Molecular Weight (g/mol) | 195.06 |
| MDL Number | MFCD00000123 |
| SMILES | CCOC(=O)C(C)(C)Br |
| Synonym | ethyl 2-bromoisobutyrate,ethyl 2-bromo-2-methylpropionate,ethyl alpha-bromoisobutyrate,ethyl .alpha.-bromoisobutyrate,propanoic acid, 2-bromo-2-methyl-, ethyl ester,2-bromo-2-methylpropanoic acid, ethyl ester,ethyl-2-bromoisobutyrate,propanoic acid, bromo-2-methyl-, ethyl ester,ethyl 2-bromo-2-methyl-propanoate,propionic acid, 2-bromo-2-methyl-, ethyl ester |
| IUPAC Name | ethyl 2-bromo-2-methylpropanoate |
| InChI Key | IOLQWGVDEFWYNP-UHFFFAOYSA-N |
| Molecular Formula | C6H11BrO2 |
Diethyl fluoromalonate, 97%
CAS: 685-88-1 Molecular Formula: C7H11FO4 Molecular Weight (g/mol): 178.159 MDL Number: MFCD00009139 InChI Key: GOWQBFVDZPZZFA-UHFFFAOYSA-N Synonym: diethyl fluoromalonate,diethyl 2-fluoromalonate,fluoromalonic acid diethyl ester,1,3-diethyl 2-fluoropropanedioate,diethylfluoromalonate,2-fluoro-malonic acid diethyl ester,diethyl2-fluoromalonate,diethyl fluoropropanedioate,propanedioic acid, fluoro-, diethyl ester,malonic acid, fluoro-, diethyl ester PubChem CID: 12702 IUPAC Name: diethyl 2-fluoropropanedioate SMILES: CCOC(=O)C(C(=O)OCC)F
| PubChem CID | 12702 |
|---|---|
| CAS | 685-88-1 |
| Molecular Weight (g/mol) | 178.159 |
| MDL Number | MFCD00009139 |
| SMILES | CCOC(=O)C(C(=O)OCC)F |
| Synonym | diethyl fluoromalonate,diethyl 2-fluoromalonate,fluoromalonic acid diethyl ester,1,3-diethyl 2-fluoropropanedioate,diethylfluoromalonate,2-fluoro-malonic acid diethyl ester,diethyl2-fluoromalonate,diethyl fluoropropanedioate,propanedioic acid, fluoro-, diethyl ester,malonic acid, fluoro-, diethyl ester |
| IUPAC Name | diethyl 2-fluoropropanedioate |
| InChI Key | GOWQBFVDZPZZFA-UHFFFAOYSA-N |
| Molecular Formula | C7H11FO4 |
Sodium bromoacetate, 98%
CAS: 1068-52-6 Molecular Formula: C2H2BrNaO2 Molecular Weight (g/mol): 160.93 MDL Number: MFCD01311832 InChI Key: SESSOVUNEZQNBV-UHFFFAOYSA-M Synonym: sodium bromoacetate,sodium 2-bromoacetate,sodium monobromoacetate,unii-8j155ck8pv,acetic acid, bromo-, sodium salt,bromoacetic acid sodium salt,acmc-1bowb,sodium bromoacetate, ?brch2coona,acetic acid,bromo-,sodium salt 8ci,9ci,acetic acid, bromo-,sodium salt 8ci,9ci PubChem CID: 23675628 IUPAC Name: sodium;2-bromoacetate SMILES: C(C(=O)[O-])Br.[Na+]
| PubChem CID | 23675628 |
|---|---|
| CAS | 1068-52-6 |
| Molecular Weight (g/mol) | 160.93 |
| MDL Number | MFCD01311832 |
| SMILES | C(C(=O)[O-])Br.[Na+] |
| Synonym | sodium bromoacetate,sodium 2-bromoacetate,sodium monobromoacetate,unii-8j155ck8pv,acetic acid, bromo-, sodium salt,bromoacetic acid sodium salt,acmc-1bowb,sodium bromoacetate, ?brch2coona,acetic acid,bromo-,sodium salt 8ci,9ci,acetic acid, bromo-,sodium salt 8ci,9ci |
| IUPAC Name | sodium;2-bromoacetate |
| InChI Key | SESSOVUNEZQNBV-UHFFFAOYSA-M |
| Molecular Formula | C2H2BrNaO2 |
Ethyl 2-bromo-3-methylbutyrate, 95%
CAS: 609-12-1 Molecular Formula: C7H13BrO2 Molecular Weight (g/mol): 209.08 InChI Key: WNFUWONOILPKNX-UHFFFAOYSA-N Synonym: ethyl 2-bromoisovalerate,ethyl 2-bromo-3-methylbutyrate,butanoic acid, 2-bromo-3-methyl-, ethyl ester,ethyl .alpha.-bromoisovalerate,2-bromoisovaleric acid ethyl ester,butyric acid, 2-bromo-3-methyl-, ethyl ester,ethyl 2-bromo-3-methyl-butanoate,.alpha.-bromoisovaleric acid ethyl ester,ethyl,a-bromoisovalerate,ethyl 2-bromo isovalerate PubChem CID: 79068 IUPAC Name: ethyl 2-bromo-3-methylbutanoate SMILES: CCOC(=O)C(C(C)C)Br
| PubChem CID | 79068 |
|---|---|
| CAS | 609-12-1 |
| Molecular Weight (g/mol) | 209.08 |
| SMILES | CCOC(=O)C(C(C)C)Br |
| Synonym | ethyl 2-bromoisovalerate,ethyl 2-bromo-3-methylbutyrate,butanoic acid, 2-bromo-3-methyl-, ethyl ester,ethyl .alpha.-bromoisovalerate,2-bromoisovaleric acid ethyl ester,butyric acid, 2-bromo-3-methyl-, ethyl ester,ethyl 2-bromo-3-methyl-butanoate,.alpha.-bromoisovaleric acid ethyl ester,ethyl,a-bromoisovalerate,ethyl 2-bromo isovalerate |
| IUPAC Name | ethyl 2-bromo-3-methylbutanoate |
| InChI Key | WNFUWONOILPKNX-UHFFFAOYSA-N |
| Molecular Formula | C7H13BrO2 |
Ethyl bromodifluoroacetate, 98%
CAS: 667-27-6 Molecular Formula: C4H5BrF2O2 Molecular Weight (g/mol): 202.99 MDL Number: MFCD00042069 InChI Key: IRSJDVYTJUCXRV-UHFFFAOYSA-N Synonym: ethyl bromodifluoroacetate,ethylbromodifluoroacetate,bromodifluoroacetic acid ethyl ester,acetic acid, bromodifluoro-, ethyl ester,ethyl difluorobromoacetate,ethyl 2-bromo-2,2-difluoro-acetate,2-bromo-2,2-difluoro-1-ethoxyethan-1-one,2-bromo-2,2-difluoro-1-ethoxy-1-oxoethane,ethylbrom difluor acetat,pubchem16953 PubChem CID: 69585 IUPAC Name: ethyl 2-bromo-2,2-difluoroacetate SMILES: CCOC(=O)C(F)(F)Br
| PubChem CID | 69585 |
|---|---|
| CAS | 667-27-6 |
| Molecular Weight (g/mol) | 202.99 |
| MDL Number | MFCD00042069 |
| SMILES | CCOC(=O)C(F)(F)Br |
| Synonym | ethyl bromodifluoroacetate,ethylbromodifluoroacetate,bromodifluoroacetic acid ethyl ester,acetic acid, bromodifluoro-, ethyl ester,ethyl difluorobromoacetate,ethyl 2-bromo-2,2-difluoro-acetate,2-bromo-2,2-difluoro-1-ethoxyethan-1-one,2-bromo-2,2-difluoro-1-ethoxy-1-oxoethane,ethylbrom difluor acetat,pubchem16953 |
| IUPAC Name | ethyl 2-bromo-2,2-difluoroacetate |
| InChI Key | IRSJDVYTJUCXRV-UHFFFAOYSA-N |
| Molecular Formula | C4H5BrF2O2 |
Ethyl bromofluoroacetate, 97%
CAS: 401-55-8 Molecular Formula: C4H6BrFO2 Molecular Weight (g/mol): 184.992 MDL Number: MFCD00042095 InChI Key: ULNDTPIRBQGESN-UHFFFAOYSA-N Synonym: ethyl bromofluoroacetate,bromofluoroacetic acid ethyl ester,ethyl-2-bromofluoroacetate,ethylbromofluoroacetate,acetic acid, bromofluoro-, ethyl ester,bromofluoroacetate,ethyl fluorobromoacetate,acmc-209jb9,ksc236i3t PubChem CID: 2733407 IUPAC Name: ethyl 2-bromo-2-fluoroacetate SMILES: CCOC(=O)C(F)Br
| PubChem CID | 2733407 |
|---|---|
| CAS | 401-55-8 |
| Molecular Weight (g/mol) | 184.992 |
| MDL Number | MFCD00042095 |
| SMILES | CCOC(=O)C(F)Br |
| Synonym | ethyl bromofluoroacetate,bromofluoroacetic acid ethyl ester,ethyl-2-bromofluoroacetate,ethylbromofluoroacetate,acetic acid, bromofluoro-, ethyl ester,bromofluoroacetate,ethyl fluorobromoacetate,acmc-209jb9,ksc236i3t |
| IUPAC Name | ethyl 2-bromo-2-fluoroacetate |
| InChI Key | ULNDTPIRBQGESN-UHFFFAOYSA-N |
| Molecular Formula | C4H6BrFO2 |