
Acids
Organic and inorganic acids suitable for a wide variety of laboratory applications. Products are available in solid and liquid forms and in various pH values, quantities, reagent grades, and purities.
Acids are defined as substances that have a sour taste, a low pH (<7), and cause litmus paper to turn red. They also react with bases (yielding water and ionic compounds called salts) and produce hydrogen gas when used to dissolve metals such as zinc and iron.
Chemically, an acid is a molecule or ion that acts as a proton or hydrogen ion donor (Brønsted-Lowry acid) in a non-aqueous solution. In water, acids form hydronium ions (H3O+).
An acid is alternatively defined as a molecule or ion that accepts an electron pair (Lewis acid). One example is trifluoroborane, which has a boron atom capable of accepting an electron pair from ammonia (NH3) to form NH3-BF3.
Common inorganic acids include hydrochloric, sulfuric, nitric, and phosphoric acids. Common organic acids include acetic, benzoic, citric, and lactic acids.
In the laboratory, acids are used as reagents or catalysts in many types of chemical reactions.
Strong acids, such as sulfuric and hydrochloric acid, are highly corrosive and have extensive commercial applications.
- Sulfuric acid is used to process petroleum and minerals and to make other chemicals like nitric acid
- Hydrochloric acid is used to pickle steel and other metals
- Some acids are used as neutralizers to produce salts; for example, ammonium nitrate is produced by the reaction of nitric acid with ammonia
- Many acids are also used in the food and beverage industry
Do you need bulk and custom chemical solutions? Ask our Fisher Scientific Chemical Specialists.
Filtered Search Results

Formic Acid ACS, 88%, EMD Chemicals
CAS: 64-18-6 Molecular Formula: CH2O2 Molecular Weight (g/mol): 46.025 InChI Key: BDAGIHXWWSANSR-UHFFFAOYSA-N Synonym: methanoic acid,formylic acid,aminic acid,bilorin,hydrogen carboxylic acid,formisoton,myrmicyl,formira,acide formique,collo-bueglatt PubChem CID: 284 ChEBI: CHEBI:30751 IUPAC Name: formic acid SMILES: C(=O)O
PubChem CID | 284 |
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CAS | 64-18-6 |
Molecular Weight (g/mol) | 46.025 |
ChEBI | CHEBI:30751 |
SMILES | C(=O)O |
Synonym | methanoic acid,formylic acid,aminic acid,bilorin,hydrogen carboxylic acid,formisoton,myrmicyl,formira,acide formique,collo-bueglatt |
IUPAC Name | formic acid |
InChI Key | BDAGIHXWWSANSR-UHFFFAOYSA-N |
Molecular Formula | CH2O2 |
Hydrochloric Acid fuming, 37.0%, for analysis EMSURE™ ACS, ISO, Reag. Ph Eur, MilliporeSigma™
CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N Synonym: Hydrogen chloride solution IUPAC Name: hydrogen chloride SMILES: Cl
CAS | 7647-01-0 |
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Molecular Weight (g/mol) | 36.46 |
MDL Number | MFCD00011324 MFCD00792839 |
SMILES | Cl |
Synonym | Hydrogen chloride solution |
IUPAC Name | hydrogen chloride |
InChI Key | VEXZGXHMUGYJMC-UHFFFAOYSA-N |
Molecular Formula | ClH |
Hydrochloric Acid, 30.0%, Ultrapur, MilliporeSigma™
CAS: 10035-10-6 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N Synonym: Hydrogen chloride solution IUPAC Name: hydrogen chloride SMILES: Cl
CAS | 10035-10-6 |
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Molecular Weight (g/mol) | 36.46 |
MDL Number | MFCD00011324 MFCD00792839 |
SMILES | Cl |
Synonym | Hydrogen chloride solution |
IUPAC Name | hydrogen chloride |
InChI Key | VEXZGXHMUGYJMC-UHFFFAOYSA-N |
Molecular Formula | ClH |
Phosphotungstic Acid Hydrate, MP Biomedicals™
CAS: 12501-23-4 Molecular Formula: H5O41PW12 Molecular Weight (g/mol): 2880.20 MDL Number: MFCD00011342 InChI Key: AVFBYUADVDVJQL-UHFFFAOYSA-N Synonym: phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade PubChem CID: 16212977 IUPAC Name: 12-Tungstophosphate hydrate SMILES: O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O
PubChem CID | 16212977 |
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CAS | 12501-23-4 |
Molecular Weight (g/mol) | 2880.20 |
MDL Number | MFCD00011342 |
SMILES | O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O |
Synonym | phosphotungstic acid hydrate,tungstophosphoric acid,12-tungstophosphoric acid hydrate,phosphoric acid dodecakis tungsten trioxide hydrate,iuaxea,aronis24073,phosphotungstic acid hydrate, reagent grade,phosphotungstic acid hydrate, for microscopy,phosphotungstic acid hydrate, p.a,phosphotungstic acid hydrate, saj special grade |
IUPAC Name | 12-Tungstophosphate hydrate |
InChI Key | AVFBYUADVDVJQL-UHFFFAOYSA-N |
Molecular Formula | H5O41PW12 |
o-Phosphoric Acid, 85% w/w, ACS, GR, MilliporeSigma™
CAS: 7664-38-2 Molecular Formula: H3O4P Molecular Weight (g/mol): 97.994 InChI Key: NBIIXXVUZAFLBC-UHFFFAOYSA-N Synonym: orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico PubChem CID: 1004 ChEBI: CHEBI:26078 IUPAC Name: phosphoric acid SMILES: OP(=O)(O)O
PubChem CID | 1004 |
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CAS | 7664-38-2 |
Molecular Weight (g/mol) | 97.994 |
ChEBI | CHEBI:26078 |
SMILES | OP(=O)(O)O |
Synonym | orthophosphoric acid,sonac,o-phosphoric acid,phosphorsaeure,acidum phosphoricum,evits,wc-reiniger,acide phosphorique,white,acido fosforico |
IUPAC Name | phosphoric acid |
InChI Key | NBIIXXVUZAFLBC-UHFFFAOYSA-N |
Molecular Formula | H3O4P |
Boric Acid, MP Biomedicals™
CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N Synonym: orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe PubChem CID: 7628 ChEBI: CHEBI:33118 IUPAC Name: boric acid SMILES: OB(O)O
PubChem CID | 7628 |
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CAS | 10043-35-3 |
Molecular Weight (g/mol) | 61.83 |
ChEBI | CHEBI:33118 |
MDL Number | MFCD00011337 |
SMILES | OB(O)O |
Synonym | orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe |
IUPAC Name | boric acid |
InChI Key | KGBXLFKZBHKPEV-UHFFFAOYSA-N |
Molecular Formula | BH3O3 |
Trichloroacetic Acid Solution, MP Biomedicals™
CAS: 76-03-9 Molecular Formula: C2HCl3O2 Molecular Weight (g/mol): 163.378 InChI Key: YNJBWRMUSHSURL-UHFFFAOYSA-N Synonym: trichloroacetic acid,trichloroethanoic acid,aceto-caustin,trichloroacetic acid,acetic acid, trichloro,trichloressigsaeure,konesta,acide trichloracetique,acido tricloroacetico,amchem grass killer PubChem CID: 6421 ChEBI: CHEBI:30956 IUPAC Name: 2,2,2-trichloroacetic acid SMILES: C(=O)(C(Cl)(Cl)Cl)O
PubChem CID | 6421 |
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CAS | 76-03-9 |
Molecular Weight (g/mol) | 163.378 |
ChEBI | CHEBI:30956 |
SMILES | C(=O)(C(Cl)(Cl)Cl)O |
Synonym | trichloroacetic acid,trichloroethanoic acid,aceto-caustin,trichloroacetic acid,acetic acid, trichloro,trichloressigsaeure,konesta,acide trichloracetique,acido tricloroacetico,amchem grass killer |
IUPAC Name | 2,2,2-trichloroacetic acid |
InChI Key | YNJBWRMUSHSURL-UHFFFAOYSA-N |
Molecular Formula | C2HCl3O2 |
(+)-Dibenzoyl-D-tartaric acid monohydrate, 99%
CAS: 80822-15-7 Molecular Formula: C18H16O9 Molecular Weight (g/mol): 376.32 MDL Number: MFCD00150722 InChI Key: DXDIHODZARUBLA-DZWQFRRJNA-N Synonym: 2s,3s-2,3-bis benzoyloxy succinic acid hydrate,+-dibenzoyl-d-tartaric acid monohydrate,d-dbta,dibenzoyl-d-+-tartaric acid monohydrate,o,o'-dibenzoyl d-tartaric acid monohydrate,+-2,3-dibenzoyl-d-tartaric acid monohydrate,+-dibenzoyl-d-tartaric acid,2s,3s-+-dibenzoyl-d-tartaric acid monohydrate,2s,3s-+-o,o'-dibenzoyltartaric acid monohydrate,butanedioic acid, 2,3-bis benzoyloxy-, monohydrate, 2s,3s PubChem CID: 11667949 SMILES: O.OC(=O)[C@@H](OC(=O)C1=CC=CC=C1)[C@H](OC(=O)C1=CC=CC=C1)C(O)=O
PubChem CID | 11667949 |
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CAS | 80822-15-7 |
Molecular Weight (g/mol) | 376.32 |
MDL Number | MFCD00150722 |
SMILES | O.OC(=O)[C@@H](OC(=O)C1=CC=CC=C1)[C@H](OC(=O)C1=CC=CC=C1)C(O)=O |
Synonym | 2s,3s-2,3-bis benzoyloxy succinic acid hydrate,+-dibenzoyl-d-tartaric acid monohydrate,d-dbta,dibenzoyl-d-+-tartaric acid monohydrate,o,o'-dibenzoyl d-tartaric acid monohydrate,+-2,3-dibenzoyl-d-tartaric acid monohydrate,+-dibenzoyl-d-tartaric acid,2s,3s-+-dibenzoyl-d-tartaric acid monohydrate,2s,3s-+-o,o'-dibenzoyltartaric acid monohydrate,butanedioic acid, 2,3-bis benzoyloxy-, monohydrate, 2s,3s |
InChI Key | DXDIHODZARUBLA-DZWQFRRJNA-N |
Molecular Formula | C18H16O9 |
Boric acid, 98%
CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N Synonym: orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe PubChem CID: 7628 ChEBI: CHEBI:33118 IUPAC Name: boric acid SMILES: OB(O)O
PubChem CID | 7628 |
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CAS | 10043-35-3 |
Molecular Weight (g/mol) | 61.83 |
ChEBI | CHEBI:33118 |
MDL Number | MFCD00011337 |
SMILES | OB(O)O |
Synonym | orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,trihydroxyborone,h3bo3,flea prufe |
IUPAC Name | boric acid |
InChI Key | KGBXLFKZBHKPEV-UHFFFAOYSA-N |
Molecular Formula | BH3O3 |
D-Gluconic acid, 50% aq. soln.
CAS: 7732-18-5,526-95-4 Molecular Formula: C6H12O7 Molecular Weight (g/mol): 196.155 MDL Number: MFCD00004240 InChI Key: RGHNJXZEOKUKBD-SQOUGZDYSA-N Synonym: gluconic acid,d-gluconic acid,dextronic acid,maltonic acid,glycogenic acid,glosanto,gluconate,pentahydroxycaproic acid,gluconic acid, d,d-gluconate PubChem CID: 10690 ChEBI: CHEBI:33198 IUPAC Name: (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoic acid SMILES: C(C(C(C(C(C(=O)O)O)O)O)O)O
PubChem CID | 10690 |
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CAS | 7732-18-5,526-95-4 |
Molecular Weight (g/mol) | 196.155 |
ChEBI | CHEBI:33198 |
MDL Number | MFCD00004240 |
SMILES | C(C(C(C(C(C(=O)O)O)O)O)O)O |
Synonym | gluconic acid,d-gluconic acid,dextronic acid,maltonic acid,glycogenic acid,glosanto,gluconate,pentahydroxycaproic acid,gluconic acid, d,d-gluconate |
IUPAC Name | (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanoic acid |
InChI Key | RGHNJXZEOKUKBD-SQOUGZDYSA-N |
Molecular Formula | C6H12O7 |
L-(-)-Malic acid, 97%
CAS: 97-67-6 Molecular Formula: C4H6O5 Molecular Weight (g/mol): 134.087 MDL Number: MFCD00064213 InChI Key: BJEPYKJPYRNKOW-REOHCLBHSA-N Synonym: l-malic acid,l---malic acid,s-2-hydroxysuccinic acid,2s-2-hydroxybutanedioic acid,l--malic acid,apple acid,--malic acid,l-apple acid,s-malic acid,s-2-hydroxybutanedioic acid PubChem CID: 222656 ChEBI: CHEBI:30797 IUPAC Name: (2S)-2-hydroxybutanedioic acid SMILES: C(C(C(=O)O)O)C(=O)O
PubChem CID | 222656 |
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CAS | 97-67-6 |
Molecular Weight (g/mol) | 134.087 |
ChEBI | CHEBI:30797 |
MDL Number | MFCD00064213 |
SMILES | C(C(C(=O)O)O)C(=O)O |
Synonym | l-malic acid,l---malic acid,s-2-hydroxysuccinic acid,2s-2-hydroxybutanedioic acid,l--malic acid,apple acid,--malic acid,l-apple acid,s-malic acid,s-2-hydroxybutanedioic acid |
IUPAC Name | (2S)-2-hydroxybutanedioic acid |
InChI Key | BJEPYKJPYRNKOW-REOHCLBHSA-N |
Molecular Formula | C4H6O5 |
Azelaic acid, 96%
CAS: 123-99-9 Molecular Formula: C9H16O4 Molecular Weight (g/mol): 188.223 MDL Number: MFCD00004432 InChI Key: BDJRBEYXGGNYIS-UHFFFAOYSA-N Synonym: azelaic acid,finacea,anchoic acid,azelex,lepargylic acid,skinoren,1,7-heptanedicarboxylic acid,heptanedicarboxylic acid,1,9-nonanedioic acid,emerox 1110 PubChem CID: 2266 ChEBI: CHEBI:48131 IUPAC Name: nonanedioic acid SMILES: C(CCCC(=O)O)CCCC(=O)O
PubChem CID | 2266 |
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CAS | 123-99-9 |
Molecular Weight (g/mol) | 188.223 |
ChEBI | CHEBI:48131 |
MDL Number | MFCD00004432 |
SMILES | C(CCCC(=O)O)CCCC(=O)O |
Synonym | azelaic acid,finacea,anchoic acid,azelex,lepargylic acid,skinoren,1,7-heptanedicarboxylic acid,heptanedicarboxylic acid,1,9-nonanedioic acid,emerox 1110 |
IUPAC Name | nonanedioic acid |
InChI Key | BDJRBEYXGGNYIS-UHFFFAOYSA-N |
Molecular Formula | C9H16O4 |
Hydrofluoric acid, Environmental Grade Plus, 47-51%, Thermo Scientific Chemicals
CAS: 7664-39-3 Molecular Formula: FH Molecular Weight (g/mol): 20.01 MDL Number: MFCD00011346 InChI Key: KRHYYFGTRYWZRS-UHFFFAOYSA-N Synonym: hydrofluoric acid,hydrogen fluoride,fluorhydric acid,hydrofluoride,rubigine,fluorwasserstoff,hydrogen-fluoride,antisal 2b,fluorowodor polish,caswell no. 484 PubChem CID: 14917 ChEBI: CHEBI:29228 SMILES: F
PubChem CID | 14917 |
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CAS | 7664-39-3 |
Molecular Weight (g/mol) | 20.01 |
ChEBI | CHEBI:29228 |
MDL Number | MFCD00011346 |
SMILES | F |
Synonym | hydrofluoric acid,hydrogen fluoride,fluorhydric acid,hydrofluoride,rubigine,fluorwasserstoff,hydrogen-fluoride,antisal 2b,fluorowodor polish,caswell no. 484 |
InChI Key | KRHYYFGTRYWZRS-UHFFFAOYSA-N |
Molecular Formula | FH |
Amidosulfonic acid, ACS, 99.3-100.3% (Assay dried basis)
CAS: 5329-14-6 Molecular Formula: H3NO3S Molecular Weight (g/mol): 97.088 MDL Number: MFCD00011603 InChI Key: IIACRCGMVDHOTQ-UHFFFAOYSA-N Synonym: amidosulfonic acid,amidosulfuric acid,aminosulfonic acid,imidosulfonic acid,sulfamidic acid,sulfaminic acid,sulphamic acid,jumbo,aminosulfuric acid,sulphamidic acid PubChem CID: 5987 ChEBI: CHEBI:9330 IUPAC Name: sulfamic acid SMILES: NS(=O)(=O)O
PubChem CID | 5987 |
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CAS | 5329-14-6 |
Molecular Weight (g/mol) | 97.088 |
ChEBI | CHEBI:9330 |
MDL Number | MFCD00011603 |
SMILES | NS(=O)(=O)O |
Synonym | amidosulfonic acid,amidosulfuric acid,aminosulfonic acid,imidosulfonic acid,sulfamidic acid,sulfaminic acid,sulphamic acid,jumbo,aminosulfuric acid,sulphamidic acid |
IUPAC Name | sulfamic acid |
InChI Key | IIACRCGMVDHOTQ-UHFFFAOYSA-N |
Molecular Formula | H3NO3S |