Heterocyclic Building Blocks

Pyrrole, 99%, extra pure, ACROS Organics™

CAS: 109-97-7 Molecular Formula: C4H5N Molecular Weight (g/mol): 67.09 MDL Number: MFCD00005216 InChI Key: KAESVJOAVNADME-UHFFFAOYSA-N Synonym: pyrrole, divinylenimine, azole, imidole, pyrrol, monopyrrole, divinyleneimine, 1-aza-2,4-cyclopentadiene, polypyrrole, unii-86s1zd6l2c PubChem CID: 8027 ChEBI: CHEBI:19203 IUPAC Name: 1H-pyrrole SMILES: C1=CNC=C1 2.5KG Pyrrole, 99%, extra pure

1,3,5-Triazine-2,4,6-trithiol trisodium salt, approx. 15% solution in water, ACROS Organics™

CAS: 17766-26-6 Molecular Formula: C3H3N3Na3S3 Molecular Weight (g/mol): 246.227 InChI Key: YQHCWFVOBRIHOM-UHFFFAOYSA-N Synonym: 1,3,5-triazine-2,4,6 1h,3h,5h-trithione, trisodium salt, 1,3,5-triazine-2,4,6-trithiol trisodium salt, trithiocyanuric acid trisodium PubChem CID: 66735895 IUPAC Name: sodium;1,3,5-triazinane-2,4,6-trithione SMILES: C1(=S)NC(=S)NC(=S)N1.[Na].[Na].[Na] 2.5LT 1,3,5-Triazine-2,4,6-trithiol trisodium salt, approx. 15% solution in water

Alfa Aesar™ 3-Methyl-2-benzothiazolinone hydrazone hydrochloride hydrate, 97%

CAS: 149022-15-1 Molecular Formula: C8H10ClN3S Molecular Weight (g/mol): 215.699 MDL Number: MFCD00149370 InChI Key: OEZPVSPULCMUQB-DQMXGCRQSA-N Synonym: unii-9u2c4w7epr, mbth hydrochloride, 9u2c4w7epr, 3-methyl-2-benzothiazolone hydrazone hydrochloride, 3-methyl-2-benzothiazolinone hydrazone hydrochloride, z-2-hydrazono-3-methyl-2,3-dihydrobenzo d thiazole hydrochloride, mbth hcl, ccris 1543, 2 3h-benzothiazolone, 3-methyl-, hydrazone, hydrochloride 1:1, 2e-2-hydrazinylidene-3-methyl-1,3-benzothiazole hydrochloride PubChem CID: 9575839 IUPAC Name: (Z)-(3-methyl-1,3-benzothiazol-2-ylidene)hydrazine;hydrochloride SMILES: CN1C2=CC=CC=C2SC1=NN.Cl 3-METHYL-2-BENZOTHIAZOLINONE HYDRAZONE HCL,25G

Alfa Aesar™ 1H-Pyrazole-3,5-dicarboxylic acid monohydrate, 98%

CAS: 303180-11-2 Molecular Formula: C5H6N2O5 Molecular Weight (g/mol): 174.112 MDL Number: MFCD00149323 InChI Key: GLINCONFUZIMCN-UHFFFAOYSA-N Synonym: 1h-pyrazole-3,5-dicarboxylic acid hydrate, 3,5-pyrazoledicarboxylic acid monohydrate, 1h-pyrazole-3,5-dicarboxylic acid monohydrate, pyrazole-3,5-dicarboxylic acid, hydrate, acmc-1aezk, 3,5-pyrazoledicarboxylic acid hydrate, 1h-pyrazole-3,5-dicarboxylicacidmonohydrate, 1h-pyrazole-3,5-dicarboxylic acid; hydrate, 1h-pyrazole-3,5-dicarboxylic acid hydrate 1:1 PubChem CID: 2723723 IUPAC Name: 1H-pyrazole-3,5-dicarboxylic acid;hydrate SMILES: C1=C(NN=C1C(=O)O)C(=O)O.O PYRAZOLE-3,5-DICARBOXYLIC ACID MONOHYDRATE,100G

2,4-Pyridinedicarboxylic Acid +99%, ACROS Organics™

CAS: 499-80-9 Molecular Formula: C7H5NO4·xH2O Molecular Weight (g/mol): 167.12 MDL Number: MFCD00149413 InChI Key: MJIVRKPEXXHNJT-UHFFFAOYSA-N Synonym: 2,4-pyridinedicarboxylic acid, lutidinic acid, 2,4-lutidinic acid, 2,4-pyridinedicarboxylicacid, hydrate 1:1, 4nrq, pd2, 4-carboxypicolinic acid, pubchem16314, pyridine carboxylate, 6a, acmc-1bnb9 PubChem CID: 10365 ChEBI: CHEBI:44737 IUPAC Name: pyridine-2,4-dicarboxylic acid SMILES: C1=CN=C(C=C1C(=O)O)C(=O)O 5GR 2,4-Pyridinedicarboxylic acid hydrate, 99+%

Methyl Viologen hydrate, 98%, ACROS Organics™

CAS: 1910-42-5 Molecular Formula: C12H14Cl2N2 Molecular Weight (g/mol): 257.158 MDL Number: MFCD00150001 InChI Key: FIKAKWIAUPDISJ-UHFFFAOYSA-L Synonym: Paraquat, dichloride PubChem CID: 15938 ChEBI: CHEBI:28786 IUPAC Name: 1-methyl-4-(1-methylpyridin-1-ium-4-yl)pyridin-1-ium;dichloride SMILES: C[N+]1=CC=C(C=C1)C2=CC=[N+](C=C2)C.[Cl-].[Cl-] 5GR Methyl Viologen hydrate, 98%

MES sodium salt, 99%, ACROS Organics™

CAS: 71119-23-8 Molecular Formula: C6H12NNaO4S Molecular Weight (g/mol): 217.215 MDL Number: MFCD00065473 InChI Key: IRHWMYKYLWNHTL-UHFFFAOYSA-M PubChem CID: 23673676 ChEBI: CHEBI:62955 IUPAC Name: sodium;2-morpholin-4-ylethanesulfonate SMILES: C1COCCN1CCS(=O)(=O)[O-].[Na+] 25GR MES sodium salt, 99%

Alfa Aesar™ 5-Methyl-1H-tetrazole, 97%

CAS: 4076-36-2 Molecular Formula: C2H4N4 Molecular Weight (g/mol): 84.082 MDL Number: MFCD00129971 InChI Key: XZGLNCKSNVGDNX-UHFFFAOYSA-N Synonym: 5-methyltetrazole, 5-methyl-1h-tetrazole, 5-methyl tetrazole, 1h-tetrazole, 5-methyl, 5-methyl-1h-tertazole, tetrazole, 5-methyl, 5-methyl-1h-1,2,3,4-tetrazole, 5-methyl-2h-1,2,3,4-tetrazole, 2h-tetrazole, 5-methyl, 5-methyl-1h-1,2,3,4-tetraazole PubChem CID: 138107 IUPAC Name: 5-methyl-2H-tetrazole SMILES: CC1=NNN=N1 25GR 5-Methyl-1H-tetrazole, 97% 25g

FerroZine™ iron reagent, hydrate, 98+%, pure, ACROS Organics™

CAS: 1266615-85-3 Molecular Formula: C20H13N4NaO6S2·xH2O Molecular Weight (g/mol): 492.46 InChI Key: TXAJQBKMPKPCAD-UHFFFAOYSA-N Synonym: ferrozine mono-sodium salt hydrate, ferrozine™ iron reagent, c20h13n4o6s2.na.h2o, pdt disulfonate monosodium salt hydrate, 3-2-pyridyl-5,6-diphenyl-1,2,4-triazine-p,p inverted exclamation marka-disulfonic acid monosodium salt hydrate, 3-2-pyridyl-5,6-diphenyl-1,2,4-triazine-p,p'-disulfonic acid monosodium salt hydrate PubChem CID: 129893581 1GR FerroZine

MOPS, 99.5%, for molecular biology, Dnase, Rnase, Prot. free, for peptide sequencing, ACROS Organics™

CAS: 1132-61-2 Molecular Formula: C7H15NO4S Molecular Weight (g/mol): 209.26 MDL Number: MFCD00006183 InChI Key: DVLFYONBTKHTER-UHFFFAOYSA-N Synonym: 3-(N-Morpholino)propanesulfonic acid PubChem CID: 70807 ChEBI: CHEBI:44115 IUPAC Name: 3-morpholin-4-ylpropane-1-sulfonic acid SMILES: C1COCCN1CCCS(=O)(=O)O 500GR MOPS, 99.5%, for molecular biology, Dnase, Rnase, Prot. free, for peptide sequencing

4,5-Dicyanoimidazole, 99%, ACROS Organics™

CAS: 1122-28-7 Molecular Formula: C5H2N4 Molecular Weight (g/mol): 118.1 MDL Number: MFCD00005194 InChI Key: XGDRLCRGKUCBQL-UHFFFAOYSA-N Synonym: 4,5-dicyanoimidazole, imidazole-4,5-dicarbonitrile, 4,5-imidazoledicarbonitrile, activator, pubchem7602, 4, 5-dicyanoimidazole, moa 7, imidazole-4,5-dinitrile, acmc-1brr7, 4,5-dicyano-1h-imidazole PubChem CID: 70729 IUPAC Name: 1H-imidazole-4,5-dicarbonitrile SMILES: C1=NC(=C(N1)C#N)C#N 5GR 4,5-Dicyanoimidazole, 99%

Hydrogen fluoride-pyridine, 65-70%, ACROS Organics™

CAS: 32001-55-1 Molecular Formula: C5H6FN Molecular Weight (g/mol): 99.11 MDL Number: MFCD00012436 InChI Key: GRJJQCWNZGRKAU-UHFFFAOYSA-N Synonym: pyridine hydrofluoride, hydrogen fluoride-pyridine, olah's reagent, pyridinium fluoride, hydrogen fluoride pyridine complex, hydrogen fluoride pyridine, hf-pyridine, pyridine, hydrofluoride 1:1, pyridinium poly hydrogen fluoride, hydrogen fluoride/pyridine PubChem CID: 64774 IUPAC Name: pyridine;hydrofluoride SMILES: C1=CC=NC=C1.F 100GR Hydrogen fluoride-pyridine, 65-70%

4-Vinylpyridine, Stabilized 95%, ACROS Organics™

CAS: 100-43-6 Molecular Formula: C7H7N Molecular Weight (g/mol): 105.14 MDL Number: MFCD00006447 InChI Key: KFDVPJUYSDEJTH-UHFFFAOYSA-N Synonym: 4-vinylpyridine, pyridine, 4-ethenyl, pyridine, 4-vinyl, gamma-vinylpyridine, unii-i56g67xm8d, ccris 5240, 4vp, 4-pyridylethylene, 4-vinyl-pyridine, 4-vinyl pyridine PubChem CID: 7502 IUPAC Name: 4-ethenylpyridine SMILES: C=CC1=CC=NC=C1 250ML 4-Vinylpyridine, 95%, stabilized

Tetrahydro-2H-pyran-2-ol, 90%, cyclized form of 5-Hydroxypentanal, ACROS Organics™

25GR Tetrahydro-2H-pyran-2-ol, 90%, cyclized formof 5-Hydroxypentanal

Alfa Aesar™ L-beta-Proline, 98+%

CAS: 72580-53-1 Molecular Formula: C5H9NO2 Molecular Weight (g/mol): 115.132 MDL Number: MFCD06738463 InChI Key: JAEIBKXSIXOLOL-BYPYZUCNSA-N Synonym: s-pyrrolidine-3-carboxylic acid, pubchem11126, s-+-pyrrolidine-3-carboxylic acid, l-beta-proline, 3s-3-pyrrolidinecarboxylic acid, 3s-pyrrolidine-3-carboxylic acid, 3-pyrrolidinecarboxylic acid, 3s, s-pyrrolidine-3-carboxylicacid, s-beta-proline, s-, a-proline PubChem CID: 1501969 IUPAC Name: (3S)-pyrrolidine-3-carboxylic acid SMILES: C1CNCC1C(=O)O 1GR L-¬b-Proline, 98+%

Alfa Aesar™ Lithium 4,5-dicyano-2-(trifluoromethyl)imidazole, 95%

CAS: 761441-54-7 Molecular Formula: C6F3LiN4 Molecular Weight (g/mol): 192.03 MDL Number: MFCD18827480 InChI Key: CVVIFWCYVZRQIY-UHFFFAOYSA-N Synonym: litdi, lithium 4,5-dicyano-2-trifluoromethyl imidazole, lithium 4,5-dicyano-2-trifluoromethyl-imidazolide, 1-lithio-2-trifluoromethyl-1h-imidazole-4,5-dicarbonitrile PubChem CID: 73995168 10GR Lithium 4,5-dicyano-2-(trifluoromethyl)imidazole, 95% 10g

Benzo[b]furan, 99+%, Alfa Aesar™

CAS: 271-89-6 Molecular Formula: C8H6O Molecular Weight (g/mol): 118.135 MDL Number: MFCD00005847 InChI Key: IANQTJSKSUMEQM-UHFFFAOYSA-N Synonym: benzofuran, 2,3-benzofuran, coumarone, benzo b furan, cumarone, benzofurfuran, 1-oxindene, coumaron, 1-oxidene PubChem CID: 9223 ChEBI: CHEBI:35260 IUPAC Name: 1-benzofuran SMILES: C1=CC=C2C(=C1)C=CO2 2,3-BENZOFURAN, 99+% 10G

beta-Propiolactone, 97%, Alfa Aesar™

CAS: 57-57-8 Molecular Formula: C3H4O2 Molecular Weight (g/mol): 72.063 MDL Number: MFCD00005169 InChI Key: VEZXCJBBBCKRPI-UHFFFAOYSA-N Synonym: beta-propiolactone, propiolactone, 2-oxetanone, propanolide, betaprone, 3-propanolide, 1,3-propiolactone, 3-propiolactone, beta-propionolactone, beta-propiolakton PubChem CID: 2365 ChEBI: CHEBI:49073 IUPAC Name: oxetan-2-one SMILES: C1COC1=O BETA-PROPIOLACTONE, 97% 1G

Glycerol formal, 99+%, mixture of isomers, stabilized, ACROS Organics™

250ML Glycerol formal, 99+%, mixture of isomers, stabilized

2-Pyrrolidone-5-carboxylic acid, sodium salt, 50 wt.% solution in water, ACROS Organics™

CAS: 54571-67-4 Molecular Formula: C5H6NNaO3 Molecular Weight (g/mol): 151.097 MDL Number: MFCD00066984 InChI Key: CRPCXAMJWCDHFM-UHFFFAOYSA-M Synonym: sodium 5-oxopyrrolidine-2-carboxylate, sodium 5-oxo-dl-prolinate, monosodium 5-oxoproline, sodium 2-pyrrolidone-5-carboxylate, pca soda, proline, 5-oxo-, sodium salt 1:1, 2-pyrrolidone-5-carboxylic acid sodium salt, nalidone, 5-oxo-dl-proline, monosodium salt, dl-proline, 5-oxo-, monosodium salt PubChem CID: 23666346 IUPAC Name: sodium;5-oxopyrrolidine-2-carboxylate SMILES: C1CC(=O)NC1C(=O)[O-].[Na+] 100ML 2-Pyrrolidone-5-carboxylic acid, sodium salt, 50 wt% solution in water

Tetrakis(1-pyrazolyl)borate, potassium salt, 95%, ACROS Organics™

CAS: 14782-58-2 Molecular Formula: C12H12BKN8 Molecular Weight (g/mol): 318.2 MDL Number: MFCD00800557 InChI Key: RKBGLZQVHBLUBM-UHFFFAOYSA-N Synonym: tetrakis 1-pyrazolyl borate, potassium tetrakis pyrazol-1-yloxy boranuide PubChem CID: 92043288 IUPAC Name: potassium;tetra(pyrazol-1-yloxy)boranuide SMILES: [B-](ON1C=CC=N1)(ON2C=CC=N2)(ON3C=CC=N3)ON4C=CC=N4.[K+] 5GR Tetrakis(1-pyrazolyl)borate, potassium salt, 95%

Alfa Aesar™ 2-Amino-4-(2-pyridyl)thiazole, 97%

CAS: 30235-26-8 Molecular Formula: C8H7N3S Molecular Weight (g/mol): 177.225 MDL Number: MFCD00460417 InChI Key: BLKHMTAXNXLDJP-UHFFFAOYSA-N Synonym: 4-pyridin-2-yl thiazol-2-amine, 4-pyridin-2-yl-thiazol-2-ylamine, 4-pyridin-2-yl-1,3-thiazol-2-amine, 2-amino-4-2-pyridyl thiazole, 2-thiazolamine, 4-2-pyridinyl, 4-2-pyridinyl-1,3-thiazol-2-amine, 4-2-pyridinyl-2-thiazolamine, 4-2-pyridinyl thiazol-2-amine, 4-2-pyridyl-1,3-thiazole-2-ylamine, 4-pyridin-2-yl-thiazole-2-ylamine PubChem CID: 1092459 IUPAC Name: 4-pyridin-2-yl-1,3-thiazol-2-amine SMILES: C1=CC=NC(=C1)C2=CSC(=N2)N 2GR 2-Amino-4-(2-pyridyl)thiazole, 97% 2g

Pyridine, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

CAS: 110-86-1 Molecular Formula: C5H5N Molecular Weight (g/mol): 79.102 MDL Number: MFCD00011732 InChI Key: JUJWROOIHBZHMG-UHFFFAOYSA-N Synonym: azabenzene, azine, pyridin, piridina, pirydyna, pyridin german, pirydyna polish, piridina italian, rcra waste number u196, caswell no. 717 PubChem CID: 1049 ChEBI: CHEBI:16227 IUPAC Name: pyridine SMILES: C1=CC=NC=C1 1LT Pyridine, 99.5%, Extra Dry over Molecular Sieve, AcroSeal

2,2'-Isopropylidenebis[(4S)-4-tert-butyl-2-oxazoline], 99%, 98% e.e., ACROS Organics™

CAS: 131833-93-7 Molecular Formula: C17H30N2O2 Molecular Weight (g/mol): 294.44 MDL Number: MFCD00192243 InChI Key: DPMGLJUMNRDNMX-VXGBXAGGSA-N Synonym: 4s,4's-2,2'-propane-2,2-diyl bis 4-tert-butyl-4,5-dihydrooxazole, s,s---2,2'-isopropylidenebis 4-tert-butyl-2-oxazoline, t-bu-box, s,s, 2,2'-isopropylidenebis 4s-4-tert-butyl-2-oxazoline, s,s---2,2-bis 4-tert-butyl-2-oxazolin-2-yl propane, s,s---2,2-dimethylmethylene bis 4-tert-butyl-2-oxazoline, 4s-4-tert-butyl-2-2-4s-4-tert-butyl-4,5-dihydro-1,3-oxazol-2-yl propan-2-yl-4,5-dihydro-1,3-oxazole, 4-tert-butyl-2-1-4-tert-butyl-4,5-dihydro-1,3-oxazol-2-yl-1-methylethyl-4,5-dihydro-1,3-oxazole, s,s-t-bu-box PubChem CID: 688208 IUPAC Name: (4S)-4-tert-butyl-2-[2-[(4S)-4-tert-butyl-4,5-dihydro-1,3-oxazol-2-yl]propan-2-yl]-4,5-dihydro-1,3-oxazole SMILES: CC(C)(C)C1COC(=N1)C(C)(C)C2=NC(CO2)C(C)(C)C 250MG 2,2'-Isopropylidenebis¢(4S)-4-tert-butyl-2-oxazoline!, 99%, 98% e.e.

IR-125, Laser Grade, ACROS Organics™

CAS: 3599-32-4 Molecular Formula: C43H47N2NaO6S2 Molecular Weight (g/mol): 774.967 MDL Number: MFCD00013078 InChI Key: MOFVSTNWEDAEEK-UHFFFAOYSA-M Synonym: Indocyanine Green PubChem CID: 132274068 ChEBI: CHEBI:31696 IUPAC Name: sodium;4-[(2E)-2-[(2E,4E,6Z)-7-[1,1-dimethyl-3-(4-sulfonatobutyl)benzo[e]indol-3-ium-2-yl]hepta-2,4,6-trienylidene]-1,1-dimethylbenzo[e]indol-3-yl]butane-1-sulfonate SMILES: CC1(C(=[N+](C2=C1C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-])C=CC=CC=CC=C4C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=CC=CC=C65)(C)C)C.[Na+] 500MG IR-125, pure, laser grade

2-Phenyl-2-imidazoline, 98+%, ACROS Organics™

CAS: 936-49-2 Molecular Formula: C9H10N2 Molecular Weight (g/mol): 146.19 MDL Number: MFCD00005180 InChI Key: BKCCAYLNRIRKDJ-UHFFFAOYSA-N Synonym: 2-phenyl-2-imidazoline, 2-phenylimidazoline, 1h-imidazole, 4,5-dihydro-2-phenyl, 2-imidazoline, 2-phenyl, 4,5-dihydro-2-phenyl-1h-imidazole, 2-phenyl imidazoline, 2-phenyl-2-imidazolin, acmc-209rmt, labotest-bb lt00000058, 5-23-06-00425 beilstein handbook reference PubChem CID: 13639 IUPAC Name: 2-phenyl-4,5-dihydro-1H-imidazole SMILES: C1CN=C(N1)C2=CC=CC=C2 100GR 2-Phenyl-2-imidazoline, 98+%

L(-)-Tryptophan 99%, ACROS Organics™

CAS: 73-22-3 Molecular Formula: C11H12N2O2 Molecular Weight (g/mol): 204.229 MDL Number: MFCD00064340 InChI Key: QIVBCDIJIAJPQS-VIFPVBQESA-N Synonym: l-tryptophan, tryptophan, l-tryptophane, s-tryptophan, tryptophane, h-trp-oh, optimax, trofan, tryptacin, ardeytropin PubChem CID: 6305 ChEBI: CHEBI:16828 IUPAC Name: (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid SMILES: C1=CC=C2C(=C1)C(=CN2)CC(C(=O)O)N 500GR L(-)-Tryptophan, 99%

Pyridine, 99+%, extra pure, ACROS Organics™

CAS: 110-86-1 Molecular Formula: C5H5N Molecular Weight (g/mol): 79.102 MDL Number: MFCD00011732 InChI Key: JUJWROOIHBZHMG-UHFFFAOYSA-N Synonym: azabenzene, azine, pyridin, piridina, pirydyna, pyridin german, pirydyna polish, piridina italian, rcra waste number u196, caswell no. 717 PubChem CID: 1049 ChEBI: CHEBI:16227 IUPAC Name: pyridine SMILES: C1=CC=NC=C1 1LT Pyridine, 99+%, extra pure

cis-Epoxysuccinic acid, 97%, ACROS Organics™

CAS: 16533-72-5 Molecular Formula: C4H4O5 Molecular Weight (g/mol): 132.07 MDL Number: MFCD00191645 InChI Key: DCEMCPAKSGRHCN-XIXRPRMCSA-N Synonym: cis-epoxysuccinic acid, 2r,3s-oxirane-2,3-dicarboxylic acid, cis-oxirane-2,3-dicarboxylic acid, 2,3-oxiranedicarboxylic acid, 2r,3s-rel, 2,3-oxiranedicarboxylic acid, 2r,3s-rel-9ci PubChem CID: 2734802 IUPAC Name: (2S,3R)-oxirane-2,3-dicarboxylic acid SMILES: C1(C(O1)C(=O)O)C(=O)O 25GR cis-Epoxysuccinic acid, 97%

6-Benzylaminopurine, 99%, ACROS Organics™

CAS: 1214-39-7 Molecular Formula: C12H11N5 Molecular Weight (g/mol): 225.255 MDL Number: MFCD00005572 InChI Key: NWBJYWHLCVSVIJ-UHFFFAOYSA-N Synonym: 6-benzylaminopurine, benzyladenine, n6-benzyladenine, n-benzyladenine, n-benzyl-9h-purin-6-amine, 6-benzyladenine, 6-benzylamino purine, cytokinin b, adenine, n-benzyl, 6-bap PubChem CID: 62389 ChEBI: CHEBI:29022 IUPAC Name: N-benzyl-7H-purin-6-amine SMILES: C1=CC=C(C=C1)CNC2=NC=NC3=C2NC=N3 25GR 6-Benzylaminopurine, 99%

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