Pharmaceutical Intermediates

Heterocyclic Building Blocks

Nitrogen, oxygen and sulphur heterocycles, including pyridines, pyrimidines, indoles, piperazines and triazoles, for medicinal and process chemistry.

2,832 products11 sub-categories83 in stockCOA + SDS with every lot

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DOTA-tris(tBu)ester NHS ester

CAS: 819869-77-7
Formula: C₃₂H₅₅N₅O₁₀
MW: 669.8 g/mol

ZX-011653

DOTAGA-tetra (t-Bu ester), >99%

CAS: 306776-79-4
Formula: C₃₅H₆₄N₄O₁₀
MW: 700.9 g/mol

ZX-011741

DOTP, 98%

CAS: 91987-74-5
Formula: C₁₂H₃₂N₄O₁₂P₄
MW: 548.3 g/mol

ZX-011742

DOWEX 50W x 8 100-200 mesh

CAS: 11119-67-8
Formula: C₁₀H₉NO₂
MW: 181.14 g/mol

ZX-019063

Echitamine

CAS: 6871-44-9
Formula: C₂₂H₂₉N₂O₄⁺
MW: 385.5 g/mol

ZX-018795

Epimedin A

CAS: 110623-72-8
Formula: C₄₀H₅₂O₁₉
MW: 836.8 g/mol

ZX-040188

Epoxyazadiradione

CAS: 18385-59-6
Formula: C₂₈H₃₄O₆
MW: 466.6 g/mol

ZX-041642

Erastin, ≥98% (HPLC)

CAS: 571203-78-6
Formula: C₃₀H₃₁ClN₄O₄
MW: 547 g/mol

ZX-011033

Eribulin Related Ligand 15

CAS: 1192815-32-9
Formula: C₃₀H₃₆N₂O₄S
MW: 520.7 g/mol

ZX-011743

Eribulin Related Ligand 6

CAS: 317-20-4
Formula: C₈H₄FNO₂
MW: 165.12 g/mol

ZX-011654

Erlotinib Hydrochloride

CAS: 183319-69-9
Formula: C₂₂H₂₄ClN₃O₄
MW: 429.9 g/mol

ZX-018663

Esculetin, 98%

CAS: 305-01-1
Formula: C₉H₆O₄
MW: 178.14 g/mol

ZX-011466

Etheno-2'-deoxy-β-D-adenosine 5'-Monophosphate

CAS: 60508-81-8
Formula: C₁₂H₁₄N₅O₆P
MW: 355.24 g/mol

ZX-042843

Ethidium chloride, GR 98%+

CAS: 602-52-8
Formula: C₂₁H₂₀ClN₃
MW: 349.9 g/mol

ZX-011153

Ethionamide Sulfoxide

CAS: 536-28-7
Formula: C₈H₁₀N₂OS
MW: 182.25 g/mol

ZX-039146

Ethoxyquin, ≥75.00%

CAS: 91-53-2
Formula: C₁₄H₁₉NO
MW: 217.31 g/mol

ZX-019580

Ethy-5-methyl-1,3,4-Oxadiazole-2-carboxylate

CAS: 37641-36-4
Formula: C₆H₈N₂O₃
MW: 156.14 g/mol

ZX-040760

Ethyl

CAS: 1110768-00-7
Formula: C₃₁H₃₆Cl₂N₂O₅S
MW: 619.6 g/mol

ZX-044860

Ethyl

CAS: 127046-18-8
Formula: C₁₆H₁₅FN₂O₄
MW: 318.3 g/mol

ZX-045587

Ethyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate

CAS: 358629-53-5
Formula: C₁₀H₁₇NO₃
MW: 199.25 g/mol

ZX-033710

Ethyl 1-(6-oxo-1,6-dihydro-4-pyridazinyl)-4-piperidinecarboxylate

CAS: 1000018-23-4
Formula: C₁₂H₁₇N₃O₃
MW: 251.28 g/mol

ZX-043838

Ethyl 1-{[(tert-butoxycarbonyl)amino]sulfonyl}-4-piperidinecarboxylate

CAS: 1000018-25-6
Formula: C₁₃H₂₄N₂O₆S
MW: 336.41 g/mol

ZX-043839

Ethyl 1-ethyl-6,8-difluoro-1,4-dihydro-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylate

CAS: 98079-83-5
Formula: C₁₉H₂₃F₂N₃O₃
MW: 379.4 g/mol

ZX-045340

Ethyl 1-piperazinecarboxylate, 99%

CAS: 120-43-4
Formula: C₇H₁₄N₂O₂
MW: 158.2 g/mol

ZX-011565

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