Heterocyclic Building Blocks

Propidium iodide, 95%, Acros Organics

Chemical Name or Material: Propidium iodide Assay Percent Range: 95% Molecular Formula: C27H34I2N4 Formula Weight: 668.39 1GR Propidium iodide, 95%

Methyl Viologen hydrate, 98%, ACROS Organics™

Chemical Name or Material: Methyl Viologen hydrate Name Note: 98% CAS: 1910-42-5 Assay: 98% Assay Percent Range: 98% Molecular Formula: C12H14Cl2N2·xH2O Formula Weight: 257.15 MDL Number: MFCD00150001 Synonym: Paraquat, dichloride 5GR Methyl Viologen hydrate, 98%

Eosin Y, pure, high purity, biological stain, ACROS Organics™

Chemical Name or Material: Eosin Y Name Note: High purity biological stain CAS: 17372-87-1 Purity Grade: Pure Molecular Formula: C20H6Br4Na2O5 Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: 2', 4', 5' 100GR Eosin Y, pure, high purity, biological stain

N-Bromosuccinimide, 99%, ACROS Organics™

Chemical Name or Material: N-Bromosuccinimide CAS: 128-08-5 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C4H4BrNO2 Formula Weight: 177.99 MDL Number: MFCD00005510 Synonym: 1-Bromo-2, 5-pyrolidinedione 10GR N-Bromosuccinimide, 99%

Pyridine, 99+%, for spectroscopy, ACROS Organics™

Chemical Name or Material: Pyridine Name Note: 99+% CAS: 110-86-1 Purity Grade: For spectroscopy Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C5H5N Formula Weight: 79.1 MDL Number: MFCD00011732 Synonym: Pyr 250ML Pyridine, 99+%, for spectroscopy

Pyrrolidine +99%, ACROS Organics™

Chemical Name or Material: Pyrrolidine Name Note: 99+% CAS: 123-75-1 Assay Percent Range: 99+% Molecular Formula: C4H9N Formula Weight: 71.11 MDL Number: MFCD00005249 Synonym: Azacyclopentane 2.5LT Pyrrolidine, 99+%

6-Bromopiperonal, 98%, ACROS Organics™

Chemical Name or Material: 6-Bromo-1, 3-benzodioxole-5-carbaldehyde CAS: 15930-53-7 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C8H5BrO3 Formula Weight: 229.03 1GR 6-Bromopiperonal, 98%

Nocodazole, 98%, ACROS Organics™

Chemical Name or Material: Nocodazole Name Note: 98% CAS: 31430-18-9 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 98% Assay Percent Range: 98% Molecular Formula: C14H11N3O3S Formula Weight: 301.32 MDL Number: MFCD00005588 Synonym: Methyl [5-(2-thienylcarbonyl)-1H-benzimidazol-2-yl]-carbamate 50MG Nocodazole, 98%

1-Hexadecylpyridinium chloride monohydrate, 96.0-101.0%, ACROS Organics™

Chemical Name or Material: 1-Hexadecylpyridinium chloride monohydrate Name Note: 96.0-101.0% CAS: 6004-24-6 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 96.0-101.0% Assay Percent Range: 96.0-101.0% Molecular Formula: C21H38ClN·H2O Formula Weight: 358.01 MDL Number: MFCD00149977 Synonym: Cetylpyridinium chloride monohydrate 500GR 1-Hexadecylpyridinium chloride monohydrate,96.0-101.0%

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

Chemical Name or Material: 2, 6-Pyridinedicarboxylic acid CAS: 499-83-2 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 98.5 to 101.5% Assay Percent Range: 99% Molecular Formula: C7H5NO4 Linear Formula: (C5H3N)(COOH)2 Formula Weight: 167.12 MDL Number: MFCD00006299 Synonym: Dipicolinic acid 100GR 2,6-Pyridinedicarboxylic acid, 99%

L-Histidine hydrochloride monohydrate, 98%, ACROS Organics™

Chemical Name or Material: L-Histidine hydrochloride monohydrate Name Note: 98% CAS: 5934-29-2 Assay: 98% Assay Percent Range: 98% Molecular Formula: HCl·H2O Formula Weight: 209.64 MDL Number: MFCD00151027 2.5KG L-Histidine hydrochloride monohydrate, 98%

Indigo, synthetic, ACROS Organics™

Chemical Name or Material: Indigo Name Note: synthetic CAS: 482-89-3 Molecular Formula: C16H10N2O2 Formula Weight: 262.26 MDL Number: MFCD00005722 Synonym: C.I. 73000 100GR Indigo, synthetic

Alfa Aesar™ 1-(Methylsulfonyl)piperazine, 97%

Chemical Name or Material: 1-(Methylsulfonyl)piperazine CAS: 55276-43-2 Formula Weight: 164.23 MDL Number: MFCD02153225 5GR 1-(Methylsulfonyl)piperazine, 97% 5g

1-Methylindole, 98+%, ACROS Organics™

Chemical Name or Material: 1-Methylindole CAS: 603-76-9 CAS Min %: 98.0 CAS Max %: 100.0 Assay: ≥98.0% (GC) Assay Percent Range: 98+% Molecular Formula: C9H9N Formula Weight: 131.18 MDL Number: MFCD00005800 25GR 1-Methylindole, 98+%

Isatin 98%, ACROS Organics™

Chemical Name or Material: Isatin Name Note: 98% CAS: 91-56-5 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C8H5NO2 Formula Weight: 147.13 MDL Number: MFCD00005718 Synonym: 2, 3-Indolinedione 500GR Isatin, 98%

Isoquinoline, 97%, ACROS Organics™

Chemical Name or Material: Isoquinoline Name Note: 97% CAS: 119-65-3 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C9H7N Formula Weight: 129.16 MDL Number: MFCD00006898 500GR Isoquinoline, 97%

6-Benzylaminopurine, 99%, ACROS Organics™

Chemical Name or Material: 6-Benzylaminopurine CAS: 1214-39-7 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C12H11N5 Formula Weight: 225.25 MDL Number: MFCD00005572 Synonym: BA 25GR 6-Benzylaminopurine, 99%

Alfa Aesar™ (1-Hexadecyl)pyridinium chloride monohydrate, 98%

Chemical Name or Material: (1-Hexadecyl)pyridinium chloride monohydrate CAS: 6004-24-6 Molecular Formula: C21H38ClN·H2O Formula Weight: 358.02 (339.99 Anhydrous) MDL Number: MFCD00149977 UN Number: UN2811 Beilstein: 3578606 Merck Index: 14,2032 Synonym: Cetylpyridinium chloride monohydrate N-HEXADECYLPYRIDINIUM CHLORIDE MONOHYDRATE, 98%25G

Alfa Aesar™ 2,4,6-Tri(2-pyridyl)-1,3,5-triazine, 98%

Chemical Name or Material: 2,4,6-Tri(2-pyridyl)-1,3,5-triazine CAS: 3682-35-7 Molecular Formula: C18H12N6 Formula Weight: 312.34 MDL Number: MFCD00006045 Beilstein: 282581 Merck Index: 14,9750 Synonym: 2,4,6-Tri(2-pyridyl)-s-triazine 2,4,6-TRI(2-PYRIDYL)-S-TRIAZINE, 98%,25G

Thiazolyl blue tetrazolium bromide, 98%, Acros Organics™

Chemical Name or Material: Thiazolyl blue tetrazolium bromide Name Note: 98% CAS: 298-93-1 CAS Min %: 97.5 CAS Max %: 100.0 Assay Percent Range: 98% Molecular Formula: C18H16BrN5S Formula Weight: 414.32 Synonym: 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyl-2H-tetrazolium bromide 5GR Thiazolyl blue tetrazolium bromide, 98%

Alfa Aesar™ 1-Ethyl-3-methylimidazolium bromide, 98+%

Chemical Name or Material: 1-Ethyl-3-methylimidazolium bromide CAS: 65039-08-9 Molecular Formula: C6H11BrN2 Formula Weight: 191.07 MDL Number: MFCD03427610 Synonym: EMIMBr 1-ETHYL-3-METHYLIMIDAZOLIUM BROMIDE, 99%,50G

L(-)-Proline, 99+%, ACROS Organics™

Chemical Name or Material: L(-)-Proline CAS: 147-85-3 Assay: 99.0 to 101.0% Assay Percent Range: 99+% Molecular Formula: C5H9NO2 Formula Weight: 115.13 MDL Number: MFCD00064318 5GR L(-)-Proline, 99+%

Polyvinylpyrrolidone, average M.W. 1.300.000, K85-95, ACROS Organics™

Chemical Name or Material: Polyvinylpyrrolidone Name Note: Average M.W. 1.300.000, K85-95 CAS: 9003-39-8 Assay: 12 to 12.8% (nitrogen) MDL Number: MFCD01076626 Synonym: PVP 25GR Polyvinylpyrrolidone, average M.W. 1.300.000, K85-95

Melamine, 99%, ACROS Organics™

Chemical Name or Material: Melamine CAS: 108-78-1 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C3H6N6 Formula Weight: 126.12 MDL Number: MFCD00006055 Synonym: 2, 4, 6-Triamino-s-triazine 10KG Melamine, 99%

L-Histidine, 98%, ACROS Organics™

Chemical Name or Material: L-Histidine CAS: 71-00-1 Assay: 98% Assay Percent Range: 98% Molecular Formula: C6H9N3O2 Formula Weight: 155.16 MDL Number: MFCD00064315 Synonym: His 500GR L-Histidine, 98%

MOPS, 99%, for biochemistry, ACROS Organics™

Chemical Name or Material: MOPS Name Note: 99% CAS: 1132-61-2 CAS Min %: 98.5 CAS Max %: 100.0 Purity Grade: For biochemistry Assay: 99% Assay Percent Range: 99% Molecular Formula: C7H15NO4S Formula Weight: 209.26 MDL Number: MFCD00006183 Synonym: 3-(N-Morpholino)propanesulfonic acid 2.5KG MOPS, 99%, for biochemistry

DL-Tryptophan, 98%, ACROS Organics™

Chemical Name or Material: DL-Tryptophan Name Note: 99% CAS: 54-12-6 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C11H12N2O2 Formula Weight: 204.23 MDL Number: MFCD00064339 100GR DL-Tryptophan, 98%

Alfa Aesar™ Ethyl indole-3-acetate, 98+%

Chemical Name or Material: Ethyl indole-3-acetate CAS: 778-82-5 Molecular Formula: C12H13NO2 Formula Weight: 203.24 MDL Number: MFCD00005635 Beilstein: 171682 Synonym: Indole-3-acetic acid ethyl ester ETHYL INDOLE-3-ACETATE, 98+%,100G

Alfa Aesar™ 4-Hydroxypyridine, 97%

Chemical Name or Material: 4-Hydroxypyridine CAS: 626-64-2 Molecular Formula: C5H5NO Formula Weight: 95.1 MDL Number: MFCD00040458 Beilstein: 105800 Synonym: 4-Pyridinol; 4(1H)-Pyridone 4-HYDROXYPYRIDINE, TECH. 500G

Alfa Aesar™ 2,5-Dichloropyridine-4-carboxylic acid, 95%

Chemical Name or Material: 2,5-Dichloropyridine-4-carboxylic acid CAS: 88912-26-9 Molecular Formula: C6H3Cl2NO2 Formula Weight: 192 MDL Number: MFCD00466640 Synonym: 2,5-Dichloroisonicotinic acid 1GR 2,5-Dichloropyridine-4-carboxylic acid, 95% 1

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