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

2,832 products · page 110 of 118

Grid List

Pyridine-4-sulfonyl Chloride

CAS: 134479-04-2
Formula: C₅H₄ClNO₂S
MW: 177.61 g/mol

ZX-036392

Pyridinium p-toluenesulphonate, 98%+

CAS: 24057-28-1
Formula: C₁₂H₁₃NO₃S
MW: 251.3 g/mol

ZX-010945

Pyridoxal 5-phosphate anhydrous, LR, for spectroscopy ≥98.00%

CAS: 54-47-7
Formula: C₈H₁₀NO₆P
MW: 247.14 g/mol

ZX-038337

Pyridoxal 5-phosphate, 99%+

CAS: 54-47-7
Formula: C₈H₁₀NO₆P
MW: 247.14 g/mol

ZX-010946

Pyridoxal 5′-phosphate, monohydrate, 98%+

CAS: 41468-25-1
Formula: C₈H₁₂NO₇P
MW: 265.16 g/mol

ZX-010947

Pyridoxal hydrochloride, 99%+

CAS: 65-22-5
Formula: C₈H₁₀ClNO₃
MW: 203.62 g/mol

ZX-010948

Pyrimidine

CAS: 289-95-2
Formula: C₄H₄N₂
MW: 80.09 g/mol

ZX-046249

Pyrimidine-5-Boronic Acid

CAS: 109299-78-7
Formula: C₄H₅BN₂O₂
MW: 123.91 g/mol

ZX-043536

Pyrimidinium, 2,3-dihydro-1,3-dimethyl-2-oxo-, chloride

CAS: 21966-78-9
Formula: C₆H₉ClN₂O
MW: 160.6 g/mol

ZX-045791

Pyrithiobac

CAS: 123342-93-8
Formula: C₁₃H₁₁ClN₂O₄S
MW: 326.76 g/mol

ZX-041547

Pyrogallol Red, AR

CAS: 85531-30-2
Formula: C₁₉H₁₂O₈S
MW: 400.4 g/mol

ZX-019699

Pyromeconic acid o-methyl ether

CAS: 1193-64-2
Formula: C₆H₆O₃
MW: 126.11 g/mol

ZX-044719

Pyrrole-2-carboxaldehyde, 98%

CAS: 1003-29-8
Formula: C₅H₅NO
MW: 95.1 g/mol

ZX-011705

Pyrrole-2-carboxylic acid, 97%

CAS: 634-97-9
Formula: C₅H₅NO₂
MW: 111.1 g/mol

ZX-011706

Pyrrole-3-carboxaldehyde, 97%

CAS: 7126-39-8
Formula: C₅H₅NO
MW: 95.1 g/mol

ZX-011707

Pyrrole, 99%

CAS: 109-97-7
Formula: C₄H₅N
MW: 67.09 g/mol

ZX-011704

Pyrrolezanthine

CAS: 500574-37-8
Formula: C₁₄H₁₅NO₃
MW: 245.27 g/mol

ZX-047742

Pyrrolidin-2-ylmethanamine

CAS: 57734-57-3
Formula: C₅H₁₂N₂
MW: 100.16 g/mol

ZX-040751

Pyrrolidin-3-ol

CAS: 40499-83-0
Formula: C₄H₉NO
MW: 87.12 g/mol

ZX-040431

Pyrrolidine, for synthesis ≥99%

CAS: 123-75-1
Formula: C₄H₉N
MW: 71.12 g/mol

ZX-037108

Pyrrolidine, GR 99%+

CAS: 123-75-1
Formula: C₄H₉N
MW: 71.12 g/mol

ZX-011708

Quaternium 15

CAS: 4080-31-3
Formula: C₉H₁₆Cl₂N₄
MW: 251.15 g/mol

ZX-040385

Quercetin 3-β-D-glucoside, ≥90% (HPLC)

CAS: 482-35-9
Formula: C₂₁H₂₀O₁₂
MW: 464.4 g/mol

ZX-011484

Quercetin hydrate, extra pure 95%

CAS: 849061-97-8
Formula: C₁₅H₁₂O₈
MW: 320.25 g/mol

ZX-018931

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list