Buffers and Standards
Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.
The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:
- Red: pH 4.0
- Yellow: pH 7.0
- Blue: pH 10.0
Gestodene, Thermo Scientific™
CAS: 60282-87-3 Molecular Formula: C21H26O2 Molecular Weight (g/mol): 310.44 MDL Number: 00867858 InChI Key: SIGSPDASOTUPFS-KQMXEUTGSA-N Synonym: 13beta-Ethyl-17beta-hydroxy-18,19-dinorpregna-4,15-dien-20-yn-3-one IUPAC Name: (1R)-11a-ethyl-1-ethynyl-1-hydroxy-1H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one SMILES: CCC12CCC3C(CCC4=CC(=O)CCC34)C1C=C[C@@]2(O)C#C
Darunavir, Thermo Scientific™
CAS: 206361-99-1 Molecular Formula: C27H37N3O7S Molecular Weight (g/mol): 547.67 MDL Number: MFCD09260006 InChI Key: CJBJHOAVZSMMDJ-HEXNFIEUSA-N IUPAC Name: (3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yl N-[(2S,3R)-3-hydroxy-4-[N-(2-methylpropyl)4-aminobenzenesulfonamido]-1-phenylbutan-2-yl]carbamate SMILES: CC(C)CN(C[C@@H](O)[C@H](CC1=CC=CC=C1)NC(=O)O[C@H]1CO[C@H]2OCC[C@@H]12)S(=O)(=O)C1=CC=C(N)C=C1
Etravirine, Thermo Scientific™
CAS: 269055-15-4 Molecular Formula: C20H15BrN6O Molecular Weight (g/mol): 435.29 MDL Number: MFCD09837879 InChI Key: PYGWGZALEOIKDF-UHFFFAOYSA-N Synonym: 4-((6-Amino-5-bromo-2-((4-cyanophenyl)amino)pyrimidin-4-yl)oxy)-3,5-dimethylbenzonitrile IUPAC Name: 4-({6-amino-5-bromo-2-[(4-cyanophenyl)amino]pyrimidin-4-yl}oxy)-3,5-dimethylbenzonitrile SMILES: CC1=CC(=CC(C)=C1OC1=NC(NC2=CC=C(C=C2)C#N)=NC(N)=C1Br)C#N
Bimatoprost, Thermo Scientific™
CAS: 155206-00-1 Molecular Formula: C25H37NO4 Molecular Weight (g/mol): 415.57 MDL Number: MFCD03411999 InChI Key: AQOKCDNYWBIDND-FTOWTWDKSA-N IUPAC Name: (5Z)-7-[(1R,2R,3R,5S)-3,5-dihydroxy-2-[(1E,3S)-3-hydroxy-5-phenylpent-1-en-1-yl]cyclopentyl]-N-ethylhept-5-enamide SMILES: CCNC(=O)CCC\C=C/C[C@H]1[C@@H](O)C[C@@H](O)[C@@H]1\C=C\[C@@H](O)CCC1=CC=CC=C1
Febantel, Thermo Scientific™
CAS: 58306-30-2 Molecular Formula: C20H22N4O6S Molecular Weight (g/mol): 446.48 MDL Number: 01738527 InChI Key: HMCCXLBXIJMERM-UHFFFAOYSA-N IUPAC Name: methyl N-{[(methoxycarbonyl)imino]({[2-(2-methoxyacetamido)-4-(phenylsulfanyl)phenyl]amino})methyl}carbamate SMILES: COCC(=O)NC1=CC(SC2=CC=CC=C2)=CC=C1NC(NC(=O)OC)=NC(=O)OC
Pimobendan, Thermo Scientific™
CAS: 74150-27-9 Molecular Formula: C19H18N4O2 Molecular Weight (g/mol): 334.38 MDL Number: 00761648 InChI Key: GLBJJMFZWDBELO-UHFFFAOYNA-N IUPAC Name: 6-[2-(4-methoxyphenyl)-1H-1,3-benzodiazol-6-yl]-5-methyl-2,3,4,5-tetrahydropyridazin-3-one SMILES: COC1=CC=C(C=C1)C1=NC2=CC=C(C=C2N1)C1=NNC(=O)CC1C
Bevantolol hydrochloride, Thermo Scientific™
CAS: 42864-78-8 Molecular Formula: C20H28ClNO4 Molecular Weight (g/mol): 381.90 MDL Number: 00941389 InChI Key: FJTKCFSPYUMXJB-UHFFFAOYNA-N IUPAC Name: hydrogen 1-{[2-(3,4-dimethoxyphenyl)ethyl]amino}-3-(3-methylphenoxy)propan-2-ol chloride SMILES: [H+].[Cl-].COC1=CC=C(CCNCC(O)COC2=CC=CC(C)=C2)C=C1OC
Atomoxetine hydrochloride, Thermo Scientific™
CAS: 82248-59-7 Molecular Formula: C17H22ClNO Molecular Weight (g/mol): 291.82 MDL Number: 06410992 InChI Key: LUCXVPAZUDVVBT-UNTBIKODSA-N IUPAC Name: hydrogen methyl[(3R)-3-(2-methylphenoxy)-3-phenylpropyl]amine chloride SMILES: [H+].[Cl-].CNCC[C@@H](OC1=CC=CC=C1C)C1=CC=CC=C1
Guanethidine sulfate, Thermo Scientific™
CAS: 645-43-2 Molecular Formula: C10H24N4O4S Molecular Weight (g/mol): 296.39 MDL Number: MFCD00035403 InChI Key: YUFWAVFNITUSHI-UHFFFAOYSA-N IUPAC Name: N''-[2-(azocan-1-yl)ethyl]guanidine; sulfuric acid SMILES: OS(O)(=O)=O.NC(N)=NCCN1CCCCCCC1
2-Ethylhexyl salicylate, Thermo Scientific™
CAS: 118-60-5 Molecular Formula: C15H22O3 Molecular Weight (g/mol): 250.34 MDL Number: 00053300 InChI Key: FMRHJJZUHUTGKE-UHFFFAOYNA-N IUPAC Name: 2-ethylhexyl 2-hydroxybenzoate SMILES: CCCCC(CC)COC(=O)C1=CC=CC=C1O
Thermo Scientific Chemicals Halcinonide
CAS: 3093-35-4 Molecular Formula: C24H32ClFO5 Molecular Weight (g/mol): 454.96 MDL Number: MFCD00866006 InChI Key: MUQNGPZZQDCDFT-JNQJZLCISA-N IUPAC Name: (1S,2S,4R,8S,9S,11S,12R,13S)-8-(2-chloroacetyl)-12-fluoro-11-hydroxy-6,6,9,13-tetramethyl-5,7-dioxapentacyclo[10.8.0.0²,⁹.0⁴,⁸.0¹³,¹⁸]icos-17-en-16-one SMILES: CC1(C)O[C@@H]2C[C@H]3[C@@H]4CCC5=CC(=O)CC[C@]5(C)[C@@]4(F)[C@@H](O)C[C@]3(C)[C@@]2(O1)C(=O)CCl
9-beta-D-Arabinofuranosylguanine, Thermo Scientific™
CAS: 38819-10-2 Molecular Formula: C10H13N5O5 Molecular Weight (g/mol): 283.24 MDL Number: MFCD00065486 InChI Key: NYHBQMYGNKIUIF-FJFJXFQQSA-N Synonym: Araguanosine; Ara-G IUPAC Name: 2-amino-9-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6,9-dihydro-3H-purin-6-one SMILES: NC1=NC(=O)C2=C(N1)N(C=N2)[C@@H]1O[C@H](CO)[C@@H](O)[C@@H]1O
Ammonium thioglycolate, 70 wt.% solution in water
Ammonium thioglycolate, 68.0 to 72.0%, C2H7NO2S, CAS Number-5421-46-5, 7732-18-5 | CAS: 5421-46-5 | C2H7NO2S | 109.143 g/mol
Thermo Scientific Chemicals ADA, 99%, for biochemistry
CAS: 26239-55-4 Molecular Formula: C6H10N2O5 Molecular Weight (g/mol): 190.155 MDL Number: MFCD00008031 InChI Key: QZTKDVCDBIDYMD-UHFFFAOYSA-N Synonym: N-(2-Acetamido)iminodiacetic acid,N-(Carbamoylmethyl)iminodiacetic acid PubChem CID: 117765 ChEBI: CHEBI:43960 IUPAC Name: 2-[(2-amino-2-oxoethyl)-(carboxymethyl)amino]acetic acid SMILES: C(C(=O)N)N(CC(=O)O)CC(=O)O
Thermo Scientific Chemicals Tricine, 99+%, for biochemistry
CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N Synonym: N-[Tris(hydroxymethyl)methyl]glycine,N-(2-Hydroxy-1, 1-bis(hydroxymethyl)ethyl)glycine PubChem CID: 79784 ChEBI: CHEBI:39063 IUPAC Name: 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid SMILES: C(C(=O)O)NC(CO)(CO)CO