Heterocyclic Building Blocks

Alfa Aesar™ N-(4-Bromobutyl)phthalimide, 98%

Chemical Name or Material: N-(4-Bromobutyl)phthalimide CAS: 5394-18-3 Molecular Formula: C12H12BrNO2 Formula Weight: 282.14 MDL Number: MFCD00005905 Beilstein: 164119 N-(4-BROMOBUTYL)PHTHALIMIDE, 98+%,100G

Alfa Aesar™ 7-Bromoindole, 98%

Chemical Name or Material: 7-Bromoindole CAS: 51417-51-7 Molecular Formula: C8H6BrN Formula Weight: 196.05 MDL Number: MFCD00799492 7-BROMOINDOLE 97% 0.25G

Alfa Aesar™ 7-(Trifluoromethyl)quinoline, 97%

Chemical Name or Material: 7-(Trifluoromethyl)quinoline CAS: 325-14-4 Molecular Formula: C10H6F3N Formula Weight: 197.16 MDL Number: MFCD00833760 7-(TRIFLUOROMETHYL)QUINOL INE, 97% 1G

N-Methylpiperidine 99%, ACROS Organics™

Chemical Name or Material: N-Methylpiperidine Name Note: 99% CAS: 626-67-5 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C6H13N Formula Weight: 99.18 MDL Number: MFCD00006491 Synonym: 1-Methylpiperidine 1LT N-Methylpiperidine, 99%

Alfa Aesar™ 2-n-Pentylpyrazine, 97%

Chemical Name or Material: 2-n-Pentylpyrazine CAS: 6303-75-9 Molecular Formula: C9H14N2 Formula Weight: 150.23 MDL Number: MFCD00014614 Beilstein: 508952 Synonym: n-Amylpyrazine; 1-Pyrazinylpentane N-PENTYLPYRAZINE, 97% 5G

Alfa Aesar™ 2-Hydroxy-5-nitropyridine, 98+%

Chemical Name or Material: 2-Hydroxy-5-nitropyridine CAS: 5418-51-9 Molecular Formula: C5H4N2O3 Formula Weight: 140.1 MDL Number: MFCD00006276 Beilstein: 120352 Synonym: 5-Nitro-2-pyridinol; 5-Nitro-2(1H)-pyridone 2-HYDROXY-5-NITROPYRIDINE,98+%,100G

Alfa Aesar™ 3-(2-Isopropylphenoxy)piperidine hydrochloride, 97+%

Chemical Name or Material: 3-(2-Isopropylphenoxy)piperidine hydrochloride CAS: 1220033-52-2 Molecular Formula: C14H21NO·HCl Formula Weight: 255.79 MDL Number: MFCD13561070 250MG 3-(2-Isopropylphenoxy)piperidine hydrochloride, 97+% 250mg

(S)-2-Diphenylmethylpyrrolidine, 97+%, ACROS Organics™

Chemical Name or Material: (S)-2-Diphenylmethylpyrrolidine CAS: 119237-64-8 CAS Min %: 97.0 CAS Max %: 100.0 Assay: ≥97% Assay Percent Range: 97+% Molecular Formula: C17H19N Formula Weight: 237.34 MDL Number: MFCD00799525 1GR (S)-2-Diphenylmethylpyrrolidine, 97+%

Alfa Aesar™ Ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate, 98%

Chemical Name or Material: Ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate CAS: 23286-70-6 Molecular Formula: C7H11N3O2 Formula Weight: 169.18 MDL Number: MFCD01210846 Synonym: 5-Amino-3-methyl-1H-pyrazole-4-carboxylic acid ethyl ester ETHYL 5-AMINO-3-METHYL-1H-PYRAZOLE-4-CARBOXYLATE1G

Alfa Aesar™ 2-Chloro-4-(4-piperidinyloxy)benzonitrile, 98%

Chemical Name or Material: 2-Chloro-4-(4-piperidinyloxy)benzonitrile CAS: 796600-10-7 Molecular Formula: C12H13ClN2O Formula Weight: 236.7 MDL Number: MFCD08060977 UN Number: UN3439 2-CHLORO-4-(PIPERIDIN-4-YLOXY)BENZONITRILE1G

1-Methyl-1H-indazole-4-boronic acid pinacol ester, 97%, Acros Organics

Chemical Name or Material: 1-Methyl-1H-indazole-4-boronic acid pinacol ester Assay Percent Range: 97% Molecular Formula: C14H19BN2O2 Formula Weight: 258.13 5GR 1-Methyl-1H-indazole-4-boronic acid pinacol ester, 97%

2,4-Dimethylthiazole 98%, ACROS Organics™

Chemical Name or Material: 2, 4-Dimethylthiazole Name Note: 98% CAS: 541-58-2 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 97.5 to 102.5% Total Base, ≥97.5% (GC) Assay Percent Range: 98% Molecular Formula: C5H7NS Formula Weight: 113.18 MDL Number: MFCD00014509 5GR 2,4-Dimethylthiazole, 98%

Alfa Aesar™ 3,3-Dimethylglutaric anhydride, 97%

Chemical Name or Material: 3,3-Dimethylglutaric anhydride CAS: 4160-82-1 Molecular Formula: C7H10O3 Formula Weight: 142.15 MDL Number: MFCD00006684 Synonym: 3,3-Dimethyltetrahydro-2H-pyran-2,6-dione 3,3-DIMETHYLGLUTARIC ANHYDRIDE, 97%,25G

Alfa Aesar™ 5-Fluoroorotic acid monohydrate, 98%

Chemical Name or Material: 5-Fluoroorotic acid monohydrate CAS: 220141-70-8 Molecular Formula: C5H3FN2O4·H2O Formula Weight: 192.11 (174.09 Anhydrous) MDL Number: MFCD00150658 Beilstein: 181933 Merck Index: 14,4176 Synonym: 5-Fluorouracil-6-carboxylic acid monohydrate 5-FLUOROOROTIC ACID MONOHYDRATE, 98%250MG

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

Chemical Name or Material: 1, 4-Dioxane Name Note: Water <50ppm CAS: 123-91-1 CAS Min %: 99.75 CAS Max %: 100.0 Purity Grade: Extra Dry Assay: 99.8% Assay Percent Range: 99.8% Molecular Formula: C4H8O2 Formula Weight: 88.11 Synonym: Diox 2.5LT 1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal

1H-1,2,4-Triazole-3-carboxylic acid, 97%, ACROS Organics™

Chemical Name or Material: 1H-1, 2, 4-Triazole-3-carboxylic acid CAS: 4928-87-4 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 97% Assay Percent Range: 97% Molecular Formula: C3H3N3O2 Formula Weight: 113.08 1GR 1H-1,2,4-Triazole-3-carboxylic acid, 97%

2-(Aminomethyl)pyridine, 99%, ACROS Organics™

Chemical Name or Material: 2-(Aminomethyl)pyridine CAS: 3731-51-9 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C6H8N2 Formula Weight: 108.14 Synonym: 2-Picolylamine 100ML 2-(Aminomethyl)pyridine, 99%

Alfa Aesar™ 2-Butyrylthiophene, 97%

Chemical Name or Material: 2-Butyrylthiophene CAS: 5333-83-5 Molecular Formula: C8H10OS Formula Weight: 154.23 MDL Number: MFCD00022503 Beilstein: 110167 Synonym: n-Propyl 2-thienyl ketone; 1-(2-Thienyl)-1-butanone 2-N-BUTYRYLTHIOPHENE, 97+%10G

Alfa Aesar™ Ethyl 2-amino-5-phenylthiophene-3-carboxylate, 97%

Chemical Name or Material: Ethyl 2-amino-5-phenylthiophene-3-carboxylate CAS: 4815-34-3 Molecular Formula: C13H13NO2S Formula Weight: 247.32 MDL Number: MFCD01829801 Synonym: 2-Amino-5-phenylthiophene-3-carboxylic acid ethyl ester 1GR Ethyl 2-amino-5-phenylthiophene-3-carboxylate, 97% 1g

Alfa Aesar™ (R)-(-)-2-Methylpiperazine, 99+%, ee 99+%

Chemical Name or Material: (R)-(-)-2-Methylpiperazine CAS: 75336-86-6 Molecular Formula: C5H12N2 Formula Weight: 100.17 MDL Number: MFCD00192317 UN Number: UN2925 Beilstein: 3647994 (R)-(-)-2-METHYLPIPERAZINE1G

BOC-trans-4-hydroxy-L-proline, 98%, ACROS Organics™

Chemical Name or Material: BOC-trans-4-Hydroxy-L-proline Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C10H17NO5 Formula Weight: 231.25 Synonym: trans-N-(tert-Butoxycarbonyl)-4-hydroxy-L-proline 5GR BOC-trans-4-hydroxy-L-proline, 98%

(1S,2R,6S,7R)-4,4-Dimethyl-3,5-dioxa-8-azatricyclo[5.2.1.0(2,6)]decan-9-one, 95%, 98% e.e., ACROS Organics™

1GR (1S,2R,6S,7R)-4,4-Dimethyl-3,5-dioxa-8-azatricyclo¬Ę5.2.1.0(2,6)!decan-9-one, 95%, 98% ee

2,4-Dichloro-5-methylpyrimidine, 98%, ACROS Organics™

Chemical Name or Material: 2, 4-Dichloro-5-methylpyrimidine Assay Percent Range: 98% Molecular Formula: C5H4Cl2N2 Formula Weight: 163.01 1GR 2,4-Dichloro-5-methylpyrimidine, 98%

Alfa Aesar™ 5-Chloro-3-methyl-1-(4-methylphenyl)-1H-pyrazole-4-carboxaldehyde, 96%

Chemical Name or Material: 5-Chloro-3-methyl-1-(4-methylphenyl)-1H-pyrazole-4-carboxaldehyde CAS: 350997-70-5 Molecular Formula: C12H11ClN2O Formula Weight: 234.69 MDL Number: MFCD01993680 Synonym: 5-Chloro-3-methyl-1-(p-tolyl)-1H-pyrazole-4-carboxaldehyde 5-CHLORO-3-METHYL-1-P-TOLYL-1H-PYRAZOLE-4-CARBOX-1

4-Acetyl-4-phenylpiperidine Hydrochloride 99%, ACROS Organics™

Chemical Name or Material: 4-Acetyl-4-phenylpiperidine hydrochloride Name Note: 99% CAS: 10315-03-4 CAS Min %: 98.5 CAS Max %: 100.0 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C13H17NO·ClH Formula Weight: 239.74 MDL Number: MFCD00039037 25GR 4-Acetyl-4-phenylpiperidine hydrochloride, 99

Alfa Aesar™ 2-Amino-3-bromo-5-chloropyridine, 95%

Chemical Name or Material: 2-Amino-3-bromo-5-chloropyridine CAS: 26163-03-1 Molecular Formula: C5H4BrClN2 Formula Weight: 207.46 MDL Number: MFCD00955627 Synonym: 3-Bromo-5-chloro-2-pyridinamine 2-AMINO-3-BROMO-5-CHLOROP YRIDINE, 95% 1G

Alfa Aesar™ 1-Ethoxymethyl-2-iodoimidazole, 97%

Chemical Name or Material: 1-Ethoxymethyl-2-iodoimidazole CAS: 146697-87-2 Molecular Formula: C6H9IN2O Formula Weight: 252.05 MDL Number: MFCD03788568 1GR 1-Ethoxymethyl-2-iodoimidazole, 97% 1g

Alfa Aesar™ 2-Chloro-3-(trifluoromethyl)pyridine, 98%

Chemical Name or Material: 2-Chloro-3-(trifluoromethyl)pyridine CAS: 65753-47-1 Molecular Formula: C6H3ClF3N Formula Weight: 181.55 MDL Number: MFCD00042223 UN Number: UN2923 Beilstein: 4179716 2-CHLORO-3-(TRIFLUOROMETHYL)PYRIDINE, 98%,1G

3-(Triphenylphosphoranylidene)tetrahydropyran-2-one, 97%, ACROS Organics™

Chemical Name or Material: 3-(Triphenylphosphoranylidene)tetrahydropyran-2-one Assay Percent Range: 97% Molecular Formula: C23H21O2P Formula Weight: 360.39 5GR 3-(Triphenylphosphoranylidene)tetrahydropyran-2-one, 97%

Alfa Aesar™ 1-Methyl-4-piperidone, 98%

Chemical Name or Material: 1-Methyl-4-piperidone CAS: 1445-73-4 Molecular Formula: C6H11NO Formula Weight: 113.16 MDL Number: MFCD00006191 UN Number: UN2733 Beilstein: 106924 1-METHYL-4-PIPERIDONE, 98%250G

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