Heterocyclic Building Blocks

1,4-Dioxane, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

CAS: 123-91-1 Molecular Formula: C4H8O2 Molecular Weight (g/mol): 88.106 MDL Number: MFCD00006571 InChI Key: RYHBNJHYFVUHQT-UHFFFAOYSA-N Synonym: dioxane, p-dioxane, 1,4-diethylene dioxide, diethylene ether, dioxan, 1,4-dioxacyclohexane, diethylene dioxide, dioxanne, di ethylene oxide, tetrahydro-p-dioxin PubChem CID: 31275 ChEBI: CHEBI:47032 IUPAC Name: 1,4-dioxane SMILES: C1COCCO1 2.5LT 1,4-Dioxane, 99.5%, Extra Dry over Molecular Sieve, stabilized, AcroSeal

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

1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal™, ACROS Organics™

CAS: 123-91-1 Molecular Formula: C4H8O2 Molecular Weight (g/mol): 88.106 InChI Key: RYHBNJHYFVUHQT-UHFFFAOYSA-N Synonym: dioxane, p-dioxane, 1,4-diethylene dioxide, diethylene ether, dioxan, 1,4-dioxacyclohexane, diethylene dioxide, dioxanne, di ethylene oxide, tetrahydro-p-dioxin PubChem CID: 31275 ChEBI: CHEBI:47032 IUPAC Name: 1,4-dioxane SMILES: C1COCCO1 2.5LT 1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal

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 25LT Pyridine, 99+%, extra pure

1-Methyl-2-pyrrolidinone, 99%, extra pure, ACROS Organics™

CAS: 872-50-4 Molecular Formula: C5H9NO Molecular Weight (g/mol): 99.133 MDL Number: MFCD00003193 InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N Synonym: 1-methyl-2-pyrrolidinone, n-methyl-2-pyrrolidone, n-methylpyrrolidone, 1-methyl-2-pyrrolidone, methylpyrrolidone, m-pyrol, n-methyl-2-pyrrolidinone, n-methylpyrrolidinone, 1-methylpyrrolidinone, 2-pyrrolidinone, 1-methyl PubChem CID: 13387 ChEBI: CHEBI:7307 IUPAC Name: 1-methylpyrrolidin-2-one SMILES: CN1CCCC1=O 25LT 1-Methyl-2-pyrrolidinone, 99%, extra pure

Methylene Blue, pure, certified, ACROS Organics™

CAS: 7220-79-3 Molecular Formula: C16H24ClN3O3S Molecular Weight (g/mol): 373.90 MDL Number: MFCD00012111 InChI Key: XQAXGZLFSSPBMK-UHFFFAOYSA-M Synonym: Basic Blue 9 PubChem CID: 6099 ChEBI: CHEBI:6872 IUPAC Name: [7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium;chloride SMILES: CN(C)C1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-] 500GR Methylene Blue, pure, certified, residual water

Imidazole, 99+%, crystalline, ACROS Organics™

CAS: 288-32-4 Molecular Formula: C3H4N2 Molecular Weight (g/mol): 68.08 MDL Number: MFCD00005183 InChI Key: RAXXELZNTBOGNW-UHFFFAOYSA-N Synonym: imidazole, glyoxaline, imidazol, iminazole, miazole, 1,3-diazole, glyoxalin, imutex, 1,3-diaza-2,4-cyclopentadiene, pyrro b monazole PubChem CID: 795 ChEBI: CHEBI:16069 IUPAC Name: 1H-imidazole SMILES: C1=CN=CN1 2.5KG Imidazole, 99+%, crystalline

Pyrrolidine, 99+%, Acros Organics

CAS: 123-75-1 Molecular Formula: C4H9N Molecular Weight (g/mol): 71.11 MDL Number: MFCD00005249 InChI Key: RWRDLPDLKQPQOW-UHFFFAOYSA-N Synonym: tetrahydropyrrole, tetrahydro pyrrole, azacyclopentane, azolidine, tetramethylenimine, butylenimine, perhydropyrrole, prolamine, 1-azacyclopentane, tetramethyleneimine PubChem CID: 31268 ChEBI: CHEBI:33135 IUPAC Name: pyrrolidine SMILES: C1CCNC1 1LT Pyrrolidine, 99+%

1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

CAS: 872-50-4 Molecular Formula: C5H9NO Molecular Weight (g/mol): 99.133 MDL Number: MFCD00003193 InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N Synonym: 1-methyl-2-pyrrolidinone, n-methyl-2-pyrrolidone, n-methylpyrrolidone, 1-methyl-2-pyrrolidone, methylpyrrolidone, m-pyrol, n-methyl-2-pyrrolidinone, n-methylpyrrolidinone, 1-methylpyrrolidinone, 2-pyrrolidinone, 1-methyl PubChem CID: 13387 ChEBI: CHEBI:7307 IUPAC Name: 1-methylpyrrolidin-2-one SMILES: CN1CCCC1=O 2.5LT 1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry over Molecular Sieve, AcroSeal

Cycloheximide, 95%, ACROS Organics™

CAS: 66-81-9 Molecular Formula: C15H23NO4 Molecular Weight (g/mol): 281.35 MDL Number: MFCD00082346 InChI Key: YPHMISFOHDHNIV-FSZOTQKASA-N Synonym: cycloheximide, actidione, cicloheximide, naramycin a, kaken, actidion, actidone, hizarocin, naramycin, neocycloheximide PubChem CID: 6197 ChEBI: CHEBI:27641 IUPAC Name: 4-[(2R)-2-[(1S,3S,5S)-3,5-dimethyl-2-oxocyclohexyl]-2-hydroxyethyl]piperidine-2,6-dione SMILES: CC1CC(C(=O)C(C1)C(CC2CC(=O)NC(=O)C2)O)C 1GR Cycloheximide, 95%

Erythrosin B, pure, high purity, biological stain, ACROS Organics™

25GR Erythrosin B, pure, high purity, biological stain

Scopolamine hydrobromide trihydrate, 99%, Acros Organics

CAS: 6533-68-2 Molecular Formula: HBr·3H2O Molecular Weight (g/mol): 438.3 MDL Number: MFCD00150066 InChI Key: LACQPOBCQQPVIT-KTOIMGSCSA-N Synonym: hyoscine hydrobromide trihydrate PubChem CID: 131632304 SMILES: CN1C2CC(CC1C3C2O3)OC(=O)C(CO)C4=CC=CC=C4.O.O.O.Br 5GR Scopolamine hydrobromide trihydrate, 99%

N-Bromosuccinimide, 99%, ACROS Organics™

CAS: 128-08-5 Molecular Formula: C4H4BrNO2 Molecular Weight (g/mol): 177.985 MDL Number: MFCD00005510 InChI Key: PCLIMKBDDGJMGD-UHFFFAOYSA-N Synonym: n-bromosuccinimide, succinbromimide, succinbromide, succinibromimide, n-bromosuccimide, 2,5-pyrrolidinedione, 1-bromo, 1-bromo-2,5-pyrrolidinedione, bromosuccinimide, nbs, n-bromo succinimide PubChem CID: 67184 ChEBI: CHEBI:53174 IUPAC Name: 1-bromopyrrolidine-2,5-dione SMILES: C1CC(=O)N(C1=O)Br 1KG N-Bromosuccinimide, 99%

2,6-Pyridinedicarboxylic Acid, 99%, ACROS Organics™

CAS: 499-83-2 Molecular Formula: C7H5NO4 Molecular Weight (g/mol): 167.12 MDL Number: MFCD00006299 InChI Key: WJJMNDUMQPNECX-UHFFFAOYSA-N Synonym: 2,6-pyridinedicarboxylic acid, dipicolinic acid, 2,6-dipicolinic acid, dipicolinate, 2,6-dicarboxypyridine, 2,6-pyridinedicarboxylate, unii-ue81s5cq0g, 2,6-pyridinedicarboxylicacid, ue81s5cq0g, 2,6-pyridinedicarboxylic acid dipicolinic acid PubChem CID: 10367 ChEBI: CHEBI:46837 IUPAC Name: pyridine-2,6-dicarboxylic acid SMILES: C1=CC(=NC(=C1)C(=O)O)C(=O)O 500GR 2,6-Pyridinedicarboxylic acid, 99%

Alfa Aesar™ O-(1H-Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, 98%

CAS: 94790-37-1 Molecular Formula: C11H16F6N5OP Molecular Weight (g/mol): 379.247 MDL Number: MFCD00075445 InChI Key: UQYZFNUUOSSNKT-UHFFFAOYSA-N Synonym: hbtu, o-benzotriazol-1-yl-n,n,n',n'-tetramethyluronium hexafluorophosphate, 2-1h-benzotriazole-1-yl-1,1,3,3-tetramethyluronium hexafluorophosphate, hbtu-reagent, o-benzotriazol-1-yl-tetramethyluronium hexafluorophosphate, hbtu o-benzotriazole-n,n,n',n'-tetramethyl-uronium-hexafluoro-phosphate, n,n,n',n'-tetramethyl-o-1h-benzotriazol-1-yl uronium hexafluorophosphate, o-1h-benzotriazol-1-yl-n,n,n',n'-tetramethyluronium hexafluorophosphate, o-benzotriazole-n,n,n',n'-tetramethyluronium hexafluorophosphate PubChem CID: 2733084 IUPAC Name: [benzotriazol-1-yloxy(dimethylamino)methylidene]-dimethylazanium;hexafluorophosphate SMILES: CN(C)C(=[N+](C)C)ON1C2=CC=CC=C2N=N1.F[P-](F)(F)(F)(F)F HBTU 25G

2,4-Dimethyl-3-ethylpyrrole, 96%, Acros Organics

CAS: 517-22-6 Molecular Formula: C8H13N Molecular Weight (g/mol): 123.2 MDL Number: MFCD00005222 InChI Key: ZEBBLOXDLGIMEG-UHFFFAOYSA-N Synonym: 2,4-dimethyl-3-ethylpyrrole, kryptopyrrole, kryptopyrrol, 3-ethyl-2,4-dimethylpyrrole, cryptopyrrole, 2,4-dimethyl-3-ethyl-1h-pyrrole, 1h-pyrrole, 3-ethyl-2,4-dimethyl, pyrrole, 3-ethyl-2,4-dimethyl, acmc-209kvh, 5-20-05-00099 beilstein handbook reference PubChem CID: 10600 IUPAC Name: 3-ethyl-2,4-dimethyl-1H-pyrrole SMILES: CCC1=C(NC=C1C)C 5GR 2,4-Dimethyl-3-ethylpyrrole, 96%

MES monohydrate, 99+%, for biochemistry, ACROS Organics™

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.248 MDL Number: MFCD00149409 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N Synonym: 2-(N-Morpholino)ethanesulfonic acid monohydrate PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.O 2.5KG MES monohydrate, 99+%, for biochemistry

4-Pyridinecarboxaldehyde, 98%, ACROS Organics™

CAS: 872-85-5 Molecular Formula: C6H5NO Molecular Weight (g/mol): 107.11 MDL Number: MFCD00006425 InChI Key: BGUWFUQJCDRPTL-UHFFFAOYSA-N Synonym: 4-pyridinecarboxaldehyde, isonicotinaldehyde, 4-formylpyridine, isonicotinic aldehyde, p-pyridinealdehyde, pyridine-4-carboxaldehyde, 4-pyridinealdehyde, 4-pyridylaldehyde, 4-pyridinecarbaldehyde, pyridine-4-aldehyde PubChem CID: 13389 IUPAC Name: pyridine-4-carbaldehyde SMILES: C1=CN=CC=C1C=O 25GR 4-Pyridinecarboxaldehyde, 98%

Imidazole, 99%, ACROS Organics™

CAS: 288-32-4 Molecular Formula: C3H4N2 Molecular Weight (g/mol): 68.079 InChI Key: RAXXELZNTBOGNW-UHFFFAOYSA-N Synonym: imidazole, glyoxaline, imidazol, iminazole, miazole, 1,3-diazole, glyoxalin, imutex, 1,3-diaza-2,4-cyclopentadiene, pyrro b monazole PubChem CID: 795 ChEBI: CHEBI:16069 IUPAC Name: 1H-imidazole SMILES: C1=CN=CN1 5GR Imidazole, 99%

Eosin Y, pure, certified, ACROS Organics™

25GR Eosin Y, pure, certified

Theobromine, 99%, ACROS Organics™

CAS: 83-67-0 Molecular Formula: C7H8N4O2 Molecular Weight (g/mol): 180.17 MDL Number: MFCD00022830 InChI Key: YAPQBXQYLJRXSA-UHFFFAOYSA-N Synonym: theobromine, 3,7-dimethylxanthine, diurobromine, teobromin, theosalvose, theostene, santheose, thesodate, thesal, theobromin PubChem CID: 5429 ChEBI: CHEBI:28946 IUPAC Name: 3,7-dimethylpurine-2,6-dione SMILES: CN1C=NC2=C1C(=O)NC(=O)N2C 1KG Theobromine, 99%

L-Histidine, 98%, ACROS Organics™

CAS: 71-00-1 Molecular Formula: C6H9N3O2 Molecular Weight (g/mol): 155.157 MDL Number: MFCD00064315 InChI Key: HNDVDQJCIGZPNO-YFKPBYRVSA-N Synonym: l-histidine, histidine, h-his-oh, glyoxaline-5-alanine, anti-rheuma, l---histidine, istidina, s-histidine, l-histidin PubChem CID: 6274 ChEBI: CHEBI:15971 IUPAC Name: (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid SMILES: C1=C(NC=N1)CC(C(=O)O)N 500GR L-Histidine, 98%

N-Hydroxysuccinimide, 98+%, ACROS Organics™

CAS: 6066-82-6 Molecular Formula: C4H5NO3 Molecular Weight (g/mol): 115.09 MDL Number: MFCD00005516 InChI Key: NQTADLQHYWFPDB-UHFFFAOYSA-N Synonym: n-hydroxysuccinimide, hosu, 1-hydroxysuccinimide, 2,5-pyrrolidinedione, 1-hydroxy, 1-hydroxy-2,5-pyrrolidinedione, succinimide, n-hydroxy, n-hydroxysuccinimde, n-hydroxysuccinimid, unii-mje3791m4t, ccris 2604 PubChem CID: 80170 IUPAC Name: 1-hydroxypyrrolidine-2,5-dione SMILES: C1CC(=O)N(C1=O)O 250GR N-Hydroxysuccinimide, 98+%

Piperazine, 99%, extra pure, ACROS Organics™

CAS: 110-85-0 Molecular Formula: C4H10N2 Molecular Weight (g/mol): 86.14 MDL Number: MFCD00005953 InChI Key: GLUUGHFHXGJENI-UHFFFAOYSA-N Synonym: diethylenediamine, piperazin, 1,4-diazacyclohexane, hexahydropyrazine, piperazidine, antiren, 1,4-piperazine, diethyleneimine, eraverm, pipersol PubChem CID: 4837 ChEBI: CHEBI:28568 IUPAC Name: piperazine SMILES: C1CNCCN1 10KG Piperazine, 99%, extra pure

Rhodamine WT, 20% solution in water, ACROS Organics™

CAS: 37299-86-8 Molecular Formula: C29H29ClN2Na2O5 Molecular Weight (g/mol): 566.99 InChI Key: NRZDMKVYRRMFRR-UHFFFAOYSA-L PubChem CID: 37718 IUPAC Name: disodium;4-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]benzene-1,3-dicarboxylate;chloride SMILES: CCN(CC)C1=CC2=C(C=C1)C(=C3C=CC(=[N+](CC)CC)C=C3O2)C4=C(C=C(C=C4)C(=O)[O-])C(=O)[O-].[Na+].[Na+].[Cl-] 1LT Rhodamine WT, 20% solution in water

Alfa Aesar™ Glutarimide, 98%

CAS: 1121-89-7 Molecular Formula: C5H7NO2 Molecular Weight (g/mol): 113.116 MDL Number: MFCD00006670 InChI Key: KNCYXPMJDCCGSJ-UHFFFAOYSA-N Synonym: glutarimide, 2,6-piperidinedione, 2,6-diketopiperidine, 2,6-dioxopiperidine, acetylglycinamide impurity b, piperidin-2,6-dione, acmc-2099da, 5-21-09-00557 beilstein handbook reference, 2,6-piperidinedione 9ci PubChem CID: 70726 ChEBI: CHEBI:5435 IUPAC Name: piperidine-2,6-dione SMILES: C1CC(=O)NC(=O)C1 GLUTARIMIDE, 98% 25G

Rose Bengal, 85%, pure, high purity, Biological stain, ACROS Organics™

CAS: 632-69-9 Molecular Formula: C20H4Cl4I4Na2O5 Molecular Weight (g/mol): 1019.644 MDL Number: MFCD00005043 InChI Key: DPBQSRZQYAYDGY-UHFFFAOYSA-N Synonym: Acid Red 94, C.I. 45440 PubChem CID: 87244310 IUPAC Name: sodium;4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=C2C(=C(C(=C1I)O)I)OC3=C(C(=C(C=C3C24C5=C(C(=C(C(=C5Cl)Cl)Cl)Cl)C(=O)O4)I)O)I.[Na].[Na] 500GR Rose Bengal, 85%, pure, high purity, Biological stain

Alfa Aesar™ Thymolphthalein

CAS: 125-20-2 Molecular Formula: C28H30O4 Molecular Weight (g/mol): 430.544 MDL Number: MFCD00005909 InChI Key: LDKDGDIWEUUXSH-UHFFFAOYSA-N Synonym: thymolphthalein, thymophthalein, unii-yg5i28wsqp, yg5i28wsqp, phenolphthalein, 5',5-diisopropyl-2',2-dimethyl, 3,3-bis 4-hydroxy-5-isopropyl-2-methylphenyl-2-benzofuran-1 3h-one, 1 3h-isobenzofuranone, 3,3-bis 4-hydroxy-2-methyl-5-1-methylethyl phenyl, 5',5-diisopropyl-2',2-dimethylphenolphthalein, 3,3-bis 4-hydroxy-2-methyl-5-propan-2-ylphenyl-2-benzofuran-1-one PubChem CID: 31316 IUPAC Name: 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one SMILES: CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O THYMOLPHTHALEIN 250G

Thiazolyl blue tetrazolium bromide, 98%, Acros Organics™

CAS: 298-93-1 Molecular Formula: C18H16BrN5S Molecular Weight (g/mol): 414.32 InChI Key: AZKSAVLVSZKNRD-UHFFFAOYSA-M Synonym: thiazolyl blue, thiazolyl blue tetrazolium bromide, mmt tetrazolium, methylthiazoletetrazolium, mtt, thiazolyl blue monotetrazolium, thiazole blue, 3-4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide, mtt van, unii-euy85h477i PubChem CID: 64965 ChEBI: CHEBI:53233 IUPAC Name: 2-(3,5-diphenyltetrazol-2-ium-2-yl)-4,5-dimethyl-1,3-thiazole;bromide SMILES: CC1=C(SC(=N1)[N+]2=NC(=NN2C3=CC=CC=C3)C4=CC=CC=C4)C.[Br-] 250MG Thiazolyl blue tetrazolium bromide, 98%

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-] 1GR Methyl Viologen hydrate, 98%

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