Heterocyclic Building Blocks

Acridine orange, hydrochloride hydrate, ca. 80 % dye content, pure, ACROS Organics™

1GR Acridine Orange, hydrochloride hydrate, pure,ca. 80 % dye content

Thiamine hydrochloride, 98.5-101.5%, Acros Organics

CAS: 67-03-8 Molecular Formula: C12H17ClN4OS·HCl Molecular Weight (g/mol): 337.26 MDL Number: MFCD00012780 InChI Key: DPJRMOMPQZCRJU-UHFFFAOYSA-M Synonym: thiamine hydrochloride, vitamin b1 hydrochloride, thiamine hcl, aneurine hydrochloride, berin, thiamine chloride hydrochloride, trophite, thiamin chloride, thiamine dichloride, thiaminium chloride PubChem CID: 6202 ChEBI: CHEBI:49105 IUPAC Name: 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol;chloride;hydrochloride SMILES: CC1=C(SC=[N+]1CC2=CN=C(N=C2N)C)CCO.Cl.[Cl-] 1KG Thiamine hydrochloride, %, 98.5-101.5%

(R)-(-)-3-Quinuclidinol, 99+%, Acros Organics

2.5GR (R)-(-)-3-Quinuclidinol, 99+%

Fluorescein, ACROS Organics™

CAS: 2321-07-5 Molecular Formula: C20H12O5 Molecular Weight (g/mol): 332.31 MDL Number: MFCD00005050 InChI Key: GNBHRKFJIUUOQI-UHFFFAOYSA-N PubChem CID: 16850 ChEBI: CHEBI:31624 IUPAC Name: 3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one SMILES: C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)O)OC5=C3C=CC(=C5)O 100GR Fluorescein, pure

Azur eosin methylene-blue, pure, solution according to Giemsa, ACROS Organics™

500ML Azur eosin methylene-blue, pure, solution according to Giemsa

Tetrahydrofuran-d8, for NMR, packaged in 0.75 ml ampoules, 99.5 atom % D, ACROS Organics™

7.5ML Tetrahydrofuran-d8, for NMR, packaged in 0.75 ml ampoules, 99.5 atom % D

5-(Hydroxymethyl)furfural, 98%, ACROS Organics™

CAS: 67-47-0 Molecular Formula: C6H6O3 Molecular Weight (g/mol): 126.11 InChI Key: NOEGNKMFWQHSLB-UHFFFAOYSA-N Synonym: 5-hydroxymethylfurfural, 5-hydroxymethyl-2-furaldehyde, 5-hydroxymethyl furfural, 5-hydroxymethyl furan-2-carbaldehyde, hydroxymethylfurfural, 5-hydroxymethyl-2-furfural, 5-oxymethylfurfurole, 5-hydroxymethylfuraldehyde, hydroxymethylfurfurole PubChem CID: 237332 ChEBI: CHEBI:412516 IUPAC Name: 5-(hydroxymethyl)furan-2-carbaldehyde SMILES: C1=C(OC(=C1)C=O)CO 5GR 5-(Hydroxymethyl)furfural, 98%

(4S)-(-)-4-Isopropyl-2-oxazolidinone, 98%, ACROS Organics™

CAS: 17016-83-0 Molecular Formula: C6H11NO2 Molecular Weight (g/mol): 129.16 MDL Number: MFCD00010847 InChI Key: YBUPWRYTXGAWJX-RXMQYKEDSA-N Synonym: s-4-isopropyl-2-oxazolidinone, s---4-isopropyl-2-oxazolidinone, 4s---4-isopropyl-2-oxazolidinone, s-4-isopropyloxazolidin-2-one, 4s-4-isopropyl-1,3-oxazolidin-2-one, 2-oxazolidinone, 4-1-methylethyl-, 4s, 4s-4-propan-2-yl-1,3-oxazolidin-2-one, 4s---isopropyl-2-oxazolidinone, 4 s-1-methylethyl-2-oxazolidinone, 4s---4-isopropyl-2-oxazolidinon PubChem CID: 7157133 IUPAC Name: (4S)-4-propan-2-yl-1,3-oxazolidin-2-one SMILES: CC(C)C1COC(=O)N1 1GR (4S)-(-)-4-Isopropyl-2-oxazolidinone, 98%

HEPES, 99%, for biochemistry, ACROS Organics™

CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.302 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N Synonym: 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid PubChem CID: 23831 ChEBI: CHEBI:42334 IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid SMILES: C1CN(CCN1CCO)CCS(=O)(=O)O 100GR HEPES, 99%, for biochemistry

Alfa Aesar™ 4-Methyl-2-(2-pyridyl)thiazole-5-carboxylic acid, 97%

CAS: 34418-48-9 Molecular Formula: C10H8N2O2S Molecular Weight (g/mol): 220.246 MDL Number: MFCD01316364 InChI Key: QFDHWPOPCNNAOI-UHFFFAOYSA-N Synonym: 4-methyl-2-pyridin-2-yl thiazole-5-carboxylic acid, 2-2-pyridyl-4-methylthiazole-5-carboxylic acid, 4-methyl-2-pyridin-2-yl-1,3-thiazole-5-carboxylic acid, 4-methyl-2-2-pyridyl-5-thiazolecarboxylic acid, 5-thiazolecarboxylic acid, 4-methyl-2-2-pyridyl, 4-methyl-2-pyridin-2-yl-thiazole-5-carboxylic acid, 4-methyl-2-2-pyridinyl-1,3-thiazole-5-carboxylic acid, 4-methyl-2-2-pyridyl-1,3-thiazole-5-carboxylic acid, acmc-20ahsp, 5-thiazolecarboxylic acid, 4-methyl-2-2-pyridinyl PubChem CID: 214841 IUPAC Name: 4-methyl-2-pyridin-2-yl-1,3-thiazole-5-carboxylic acid SMILES: CC1=C(SC(=N1)C2=CC=CC=N2)C(=O)O 5GR 4-Methyl-2-(2-pyridyl)thiazole-5-carboxylic acid, 97% 5g

Alfa Aesar™ 4-Amino-6-chloropyrimidine-5-carboxaldehyde, 97%

CAS: 14160-93-1 Molecular Formula: C5H4ClN3O Molecular Weight (g/mol): 157.557 MDL Number: MFCD03789626 InChI Key: GOJNFUXEBVBARW-UHFFFAOYSA-N Synonym: 4-amino-6-chloropyrimidine-5-carboxaldehyde, 5-pyrimidinecarboxaldehyde, 4-amino-6-chloro, 4-amino-6-chloro-5-pyrimidinecarbaldehyde, 4-amino-6-chloro-pyrimidine-5-carbaldehyde, 4-amino-6-chloro-5-pyrimidinecarboxaldehyde, 4-amino-6-chloro-5-formylpyrimidine, 4-amino-6-chloro-5-formyl-1,3-diazine, pubchem22541, 6-amino-4-chloropyrimidine-5-carbaldehyde, 4-amino-6-chloro-pyrimidine-5-carboxaldehyde PubChem CID: 84230 IUPAC Name: 4-amino-6-chloropyrimidine-5-carbaldehyde SMILES: C1=NC(=C(C(=N1)Cl)C=O)N 5GR 4-Amino-6-chloropyrimidine-5-carboxaldehyde, 97% 5g

Alfa Aesar™ 8-Chloro-2-methylquinoline, 98%

CAS: 3033-82-7 Molecular Formula: C10H8ClN Molecular Weight (g/mol): 177.631 MDL Number: MFCD00051764 InChI Key: VVLYDFPOGMTMFJ-UHFFFAOYSA-N Synonym: 8-chloroquinaldine, quinaldine, 8-chloro, quinoline, 8-chloro-2-methyl, 8-chloro-2-methyl-quinoline, 2-methyl-8-chloroquinoline, pubchem5852, acmc-1aehk, maybridge1_006766, 8-chloranyl-2-methyl-quinoline, 8-chloro-2-methylquinoline PubChem CID: 221113 IUPAC Name: 8-chloro-2-methylquinoline SMILES: CC1=NC2=C(C=CC=C2Cl)C=C1 8-CHLOROQUINALDINE, 97% 5G

Alfa Aesar™ 3,3-Difluoroazetidine hydrochloride, 95%

CAS: 288315-03-7 Molecular Formula: C3H6ClF2N Molecular Weight (g/mol): 129.535 MDL Number: MFCD05663714 InChI Key: CDBAEFXTCRKJPZ-UHFFFAOYSA-N Synonym: 3,3-difluoroazetidine hydrochloride, 3,3-difluoroazetidine hcl, azetidine, 3,3-difluoro-, hydrochloride, azetidine, 3,3-difluoro-, hydrochloride 1:1, 3,3-difluoroazetidine hydrochloride 1:1, 3,3-difluoroazetidinehydrochloride, acmc-1clfn, 3,3-difluoroazetidine-hcl, difluoroazetidine hydrochloride, 3,3-difluoroazetidin hydrochloride PubChem CID: 2758247 IUPAC Name: 3,3-difluoroazetidine;hydrochloride SMILES: C1C(CN1)(F)F.Cl 3,3-DIFLUOROAZETIDINE HYDROCHLORIDE, 95%1G

Alfa Aesar™ 1,2,3,4-Tetrahydroquinoxaline, 98%

CAS: 3476-89-9 Molecular Formula: C8H10N2 Molecular Weight (g/mol): 134.182 MDL Number: MFCD00047564 InChI Key: HORKYAIEVBUXGM-UHFFFAOYSA-N Synonym: 1,2,3,4-tetrahydro-quinoxaline, tetrahydroquinoxaline, quinoxaline, 1,2,3,4-tetrahydro, 1,3,4-tetrahydroquinoxaline, ksc495i0b, 1,2,3,4-terahydroquinoxaline, quinoxaline,2,3,4-tetrahydro, 1,2,3,4-tetrahydro quinoxaline, benzo 2,3 piperazine, tetrahydro PubChem CID: 77028 IUPAC Name: 1,2,3,4-tetrahydroquinoxaline SMILES: C1CNC2=CC=CC=C2N1 5GR 1,2,3,4-Tetrahydroquinoxaline, 98% 5g

1,4-Dioxa-8-azaspiro[4.5]decane, 98%, ACROS Organics™

CAS: 177-11-7 Molecular Formula: C7H13NO2 Molecular Weight (g/mol): 143.19 MDL Number: MFCD00005976 InChI Key: KPKNTUUIEVXMOH-UHFFFAOYSA-N Synonym: 1,4-dioxa-8-azaspiro 4.5 decane, 4-piperidone ethylene ketal, 4-piperidinone ethyl ketal, 4-piperidone-ethylene ketal, 4-piperidone ethylene acetal, 1,4-dioxa-8-azaspiro 4,5 decane, 4-piperidoneethyleneketal, piperidone-4-ethyleneketal, 1,4-dioxa-8-aza-spiro 4.5 decane PubChem CID: 67435 IUPAC Name: 1,4-dioxa-8-azaspiro[4.5]decane SMILES: C1CNCCC12OCCO2 50GR 1,4-Dioxa-8-azaspiro¬Ę4.5!decane, 98%

Alfa Aesar™ Ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate, 98+%

CAS: 6440-02-4 Molecular Formula: C5H7N3O2S Molecular Weight (g/mol): 173.19 MDL Number: MFCD00778317 InChI Key: ZUGOHJWUTNKRMG-UHFFFAOYSA-N Synonym: ethyl 5-amino-1,2,3-thiadiazole-4-carboxylate, 5-amino-1,2,3-thiadiazole-4-carboxylic acid ethyl ester, 1,2,3-thiadiazole-4-carboxylic acid, 5-amino-, ethyl ester, 5-amino-1,2,3 thiadiazole-4-carboxylic acid ethyl ester, acmc-20am6n, tos-bb-0200, zugohjwutnkrmg-uhfffaoysa, 5-amino-4-carbethoxy-1,2,3-thiadiazole, 5-amino-4-ethoxycarbonyl-1,2,3-thiadiazole, 1,2,3-thiadiazole-4-carboxylicacid,5-amino-,ethylester PubChem CID: 1831000 IUPAC Name: ethyl 5-aminothiadiazole-4-carboxylate SMILES: CCOC(=O)C1=C(SN=N1)N 5-AMINO-1,2,3-THIADIAZOLE-4-CARBOX. ACID ETHYL- 1G

Alfa Aesar™ 1-(2-Aminoethyl)piperidine, 98%

CAS: 27578-60-5 Molecular Formula: C7H16N2 Molecular Weight (g/mol): 128.219 MDL Number: MFCD00006516 InChI Key: CJNRGSHEMCMUOE-UHFFFAOYSA-N Synonym: n-2-aminoethyl piperidine, 1-2-aminoethyl piperidine, 2-piperidin-1-yl ethanamine, 2-piperidin-1-yl ethan-1-amine, 1-piperidineethanamine, 2-piperidinoethylamine, 2-1-piperidinyl ethanamine, 2-1-piperidinyl ethylamine, n-aminoethylpiperidine, 2-piperidino-1-ethanamine PubChem CID: 33944 IUPAC Name: 2-piperidin-1-ylethanamine SMILES: C1CCN(CC1)CCN 1-(2-AMINOETHYL)PIPERIDINE98%,5G

Alfa Aesar™ 1-Methylimidazole-2-carboxaldehyde, 98%

CAS: 13750-81-7 Molecular Formula: C5H6N2O Molecular Weight (g/mol): 110.116 MDL Number: MFCD01321308 InChI Key: UEBFLTZXUXZPJO-UHFFFAOYSA-N Synonym: 1-methyl-1h-imidazole-2-carbaldehyde, 1-methyl-2-imidazolecarboxaldehyde, 1-methylimidazole-2-carboxaldehyde, 1h-imidazole-2-carboxaldehyde, 1-methyl, 2-formyl-1-methylimidazole, imidazole-2-carboxaldehyde, 1-methyl, pubchem7614, zlchem 1231, 2-formyl-l-methylimidazole, acmc-209ce6 PubChem CID: 139575 IUPAC Name: 1-methylimidazole-2-carbaldehyde SMILES: CN1C=CN=C1C=O 250MG 1-Methylimidazole-2-carboxaldehyde, 98% 250mg

Alfa Aesar™ 5-Bromo-3-chloro-2-fluoropyridine, 96%

CAS: 38185-56-7 Molecular Formula: C5H2BrClFN Molecular Weight (g/mol): 210.43 MDL Number: MFCD09834365 InChI Key: WXKLHBHJIBAXQH-UHFFFAOYSA-N Synonym: 2-fluoro-3-chloro-5-bromopyridine, 3-bromo-5-chloro-6-fluoropyridine, 5-bromo-3-chloro-2-fluoro-pyridine, acmc-1ct80, 5-bromo-3-chloro-2-fluoropyridine,, pyridine,5-bromo-3-chloro-2-fluoro, pyridine, 5-bromo-3-chloro-2-fluoro PubChem CID: 12056904 IUPAC Name: 5-bromo-3-chloro-2-fluoropyridine SMILES: C1=C(C(=NC=C1Br)F)Cl 1GR 5-Bromo-3-chloro-2-fluoropyridine, 96% 1g

Polyvinylpyrrolidone, average M.W. 8.000, K16-18, ACROS Organics™

CAS: 9003-39-8 Molecular Formula: C6H9NO Molecular Weight (g/mol): 111.144 MDL Number: MFCD01076626 InChI Key: WHNWPMSKXPGLAX-UHFFFAOYSA-N Synonym: n-vinyl-2-pyrrolidone, n-vinylpyrrolidone, 1-vinyl-2-pyrrolidone, 1-vinylpyrrolidin-2-one, n-vinyl-2-pyrrolidinone, vinylpyrrolidone, 2-pyrrolidinone, 1-ethenyl, 1-vinyl-2-pyrrolidinone, n-vinylpyrrolidinone, 1-vinylpyrrolidone PubChem CID: 6917 ChEBI: CHEBI:82551 IUPAC Name: 1-ethenylpyrrolidin-2-one SMILES: C=CN1CCCC1=O 2.5KG Polyvinylpyrrolidone, average M.W. 8.000, K16-18

1,4-Dioxane, 99.5%, for analysis, stabilized, 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 25LT 1,4-Dioxane, 99.5%, for analysis, stabilized

Alfa Aesar™ 2-Chloro-5-n-decylpyrimidine, 99%

CAS: 170434-06-7 Molecular Formula: C14H23ClN2 Molecular Weight (g/mol): 254.802 MDL Number: MFCD02683077 InChI Key: LJRSECCCAXFYFU-UHFFFAOYSA-N Synonym: 2-chloro-5-n-decylpyrimidine PubChem CID: 22099083 IUPAC Name: 2-chloro-5-decylpyrimidine SMILES: CCCCCCCCCCC1=CN=C(N=C1)Cl 2-CHLORO-5-N-DECYLPYRIMIDINE, 99%,1G

Alfa Aesar™ 2-Hydrazinoquinoline, 97%

CAS: 15793-77-8 Molecular Formula: C9H9N3 Molecular Weight (g/mol): 159.192 MDL Number: MFCD00041860 InChI Key: QMVCLSHKMIGEFN-UHFFFAOYSA-N Synonym: 2-hydrazinoquinoline, 2-hydrazinylquinoline, 2-quinolylhydrazine, 2 1h-quinolinone, hydrazone, quinoline, 2-hydrazino, 2-hydrazinequinoline, quinoline, 2-hydrazinyl, quinoline,2-hydrazinyl, .alpha.-quinolylhydrazine, alpha-quinolylhydrazine PubChem CID: 85111 IUPAC Name: quinolin-2-ylhydrazine SMILES: C1=CC=C2C(=C1)C=CC(=N2)NN 2-HYDRAZINEQUINOLINE250MG

trans-Zeatin-riboside, 97%, ACROS Organics™

50MG trans-Zeatin-riboside, 97%

Alfa Aesar™ 3-(4-Morpholinylcarbonyl)benzeneboronic acid, 98%

CAS: 723281-55-8 Molecular Formula: C11H14BNO4 Molecular Weight (g/mol): 235.046 MDL Number: MFCD04115687 InChI Key: DRZFURCXDFRZNR-UHFFFAOYSA-N Synonym: 3-morpholine-4-carbonyl phenylboronic acid, n-morpholinyl 3-boronobenzamide, 3-morpholine-4-carbonyl benzeneboronic acid, 3-morpholine-4-carbonyl phenyl boronic acid, 3-morpholin-4-ylcarbonyl phenylboronic acid, boronic acid, 3-4-morpholinylcarbonyl phenyl, acmc-209omm, 4-3-boronobenzoyl morpholine, 3-morpholin-4-carbonyl phenylboronic acid PubChem CID: 3602916 IUPAC Name: [3-(morpholine-4-carbonyl)phenyl]boronic acid SMILES: B(C1=CC(=CC=C1)C(=O)N2CCOCC2)(O)O 250MG 3-(4-Morpholinylcarbonyl)benzeneboronic acid, 98% 250mg

Alfa Aesar™ 2-Cyclohexyloxypyridine-5-carboxaldehyde, 97%

CAS: 916792-16-0 Molecular Formula: C12H15NO2 Molecular Weight (g/mol): 205.257 MDL Number: MFCD08060944 InChI Key: KTDSNAKFASLMHF-UHFFFAOYSA-N Synonym: 2-cyclohexyloxypyridine-5-carboxaldehyde, 6-cyclohexyloxy nicotinaldehyde, 6-cyclohexyloxy pyridine-3-carbaldehyde, 6-cyclohexyl-oxy pyridine-3-carbaldehyde PubChem CID: 42553152 IUPAC Name: 6-cyclohexyloxypyridine-3-carbaldehyde SMILES: C1CCC(CC1)OC2=NC=C(C=C2)C=O 6-(CYCLOHEXYLOXY)NICOTINALDEHYDE1G

Alfa Aesar™ 1,2,3,4-Tetrahydroquinoline, 99%

CAS: 635-46-1 Molecular Formula: C9H11N Molecular Weight (g/mol): 133.194 MDL Number: MFCD00006693 InChI Key: LBUJPTNKIBCYBY-UHFFFAOYSA-N Synonym: tetrahydroquinoline, 1,2,3,4-tetrahydro-quinoline, kusol, quinoline, 1,2,3,4-tetrahydro, unii-ccr50n1z9g, 1,2,3,4-tetrahydrochinoline, 1,2,3,4-tetrahydro quinoline, benzopiperidine, ccr50n1z9g, 1,2,3,4,-tetrahydroquinoline PubChem CID: 69460 ChEBI: CHEBI:213323 IUPAC Name: 1,2,3,4-tetrahydroquinoline SMILES: C1CC2=CC=CC=C2NC1 1,2,3,4-TETRAHYDROQUINOLINE, 98%,100G

Alfa Aesar™ Homopiperazine, 98%

CAS: 505-66-8 Molecular Formula: C5H12N2 Molecular Weight (g/mol): 100.165 MDL Number: MFCD00006933 InChI Key: FQUYSHZXSKYCSY-UHFFFAOYSA-N Synonym: homopiperazine, 1,4-diazacycloheptane, 1h-1,4-diazepine, hexahydro, hexahydro-1,4-diazepine, 1,4 diazepane, perhydro-1,4-diazepine, trimethyleneethylenediamine, 1,4-diazepan, unii-95cl167w8t, hexahydro-1h-1,4-diazepine PubChem CID: 68163 IUPAC Name: 1,4-diazepane SMILES: C1CNCCNC1 HOMOPIPERAZINE, 98% 25G

Alfa Aesar™ 5-Bromo-2-fluoropyridine, 98%

CAS: 766-11-0 Molecular Formula: C5H3BrFN Molecular Weight (g/mol): 175.988 MDL Number: MFCD01863742 InChI Key: MYUQKYGWKHTRPG-UHFFFAOYSA-N Synonym: 2-fluoro-5-bromopyridine, 3-bromo-6-fluoropyridine, 5-bromo-2-fluoro pyridine, 5-bromo-2-fluoro-pyridine, pyridine, 5-bromo-2-fluoro, 2-fluoro-5-bromo pyridine, pubchem3550, 2-fluro-5-bromo-pyridine, acmc-209p4s, bromo-2-fluoropyridine, 5 PubChem CID: 2783168 IUPAC Name: 5-bromo-2-fluoropyridine SMILES: C1=CC(=NC=C1Br)F 5-BROMO-2-FLUOROPYRIDINE, 98%,25G

Alfa Aesar™ 6-Hydroxy-1,2,3,4-tetrahydroisoquinoline, 97%

CAS: 14446-24-3 Molecular Formula: C9H11NO Molecular Weight (g/mol): 149.193 MDL Number: MFCD01717047 InChI Key: SCMZIFSYPJICCV-UHFFFAOYSA-N Synonym: 6-hydroxy-1,2,3,4-tetrahydroisoquinoline, 1,2,3,4-tetrahydro-isoquinolin-6-ol, 1,2,3,4-tetrahydro-6-isoquinolinol, 6-isoquinolinol, 1,2,3,4-tetrahydro, pubchem13941, 6-hydroxytetrahydroisochinolin, ksc376k4j, 6-hydroxy-1,2,3,4-tetrahydro-isoquinoline PubChem CID: 26698 IUPAC Name: 1,2,3,4-tetrahydroisoquinolin-6-ol SMILES: C1CNCC2=C1C=C(C=C2)O 1GR 6-Hydroxy-1,2,3,4-tetrahydroisoquinoline, 97% 1g

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