Skip to content

Product division

Pharma Intermediates & Building Blocks

Advanced and key starting materials, heterocycles, chiral building blocks and reagents for API synthesis, from gram R&D to multi-tonne supply.

9,200products

4sub-categories

1,292in stock

COA + SDSwith every lot

Organic Building Blocks 5,617 Heterocyclic Building Blocks 1,587 Bulk Pharma Intermediates 22 API Process Intermediates & Related Compounds 1,974

4-Pentenoic acid, 97% chemical structure

4-Pentenoic acid, 97%

CAS: 591-80-0
Formula: C₅H₈O₂
MW: 100.12 g/mol

VQ-008364

4-Pentyn-1-ol chemical structure

CAS: 5390-04-5
Formula: C₅H₈O
MW: 84.12 g/mol

VQ-039308

4-Phenoxybenzaldehyde, 97% chemical structure

4-Phenoxybenzaldehyde, 97%

CAS: 67-36-7
Formula: C₁₃H₁₀O₂
MW: 198.22 g/mol

VQ-008045

4-Phenoxyphenol, 99% chemical structure

4-Phenoxyphenol, 99%

CAS: 831-82-3
Formula: C₁₂H₁₀O₂
MW: 186.21 g/mol

VQ-010179

4-Phenyl-1-butanol, 99% chemical structure

4-Phenyl-1-butanol, 99%

CAS: 3360-41-6
Formula: C₁₀H₁₄O
MW: 150.22 g/mol

VQ-010019

4-Phenyl-1,2,4-triazoline-3,5-dione chemical structure

4-Phenyl-1,2,4-triazoline-3,5-dione

CAS: 4233-33-4
Formula: C₈H₅N₃O₂
MW: 175.14 g/mol

VQ-039138

4-Phenyl-1,3-thiazole, 98% chemical structure

4-Phenyl-1,3-thiazole, 98%

CAS: 1826-12-6
Formula: C₉H₇NS
MW: 161.23 g/mol

VQ-012329

4-Phenyl-2-Pyrrolidone chemical structure

4-Phenyl-2-Pyrrolidone

CAS: 1198-97-6
Formula: C₁₀H₁₁NO
MW: 161.2 g/mol

VQ-032664

4-Phenyl-3-butyn-2-one, 96% chemical structure

4-Phenyl-3-butyn-2-one, 96%

CAS: 1817-57-8
Formula: C₁₀H₈O
MW: 144.17 g/mol

VQ-008046

Reference Standard

4-Phenyl-3-Morpholinone chemical structure

4-Phenyl-3-Morpholinone

CAS: 29518-11-4
Formula: C₁₀H₁₁NO₂
MW: 177.2 g/mol

VQ-012674

Synthesis

4-Phenylbutyric acid, 98% chemical structure

4-Phenylbutyric acid, 98%

CAS: 1821-12-1
Formula: C₁₀H₁₂O₂
MW: 164.2 g/mol

VQ-008365

4-Phenylmorpholine chemical structure

4-Phenylmorpholine

CAS: 92-53-5
Formula: C₁₀H₁₃NO
MW: 163.22 g/mol

VQ-039298

4-Picoline N-oxide, 98% chemical structure

4-Picoline N-oxide, 98%

CAS: 1003-67-4
Formula: C₆H₇NO
MW: 109.13 g/mol

VQ-011818

Puriss

4-Picoline, 99% chemical structure

4-Picoline, 99%

CAS: 108-89-4
Formula: C₆H₇N
MW: 93.13 g/mol

VQ-011819

4-Piperidinopiperidine, 97% chemical structure

4-Piperidinopiperidine, 97%

CAS: 4897-50-1
Formula: C₁₀H₂₀N₂
MW: 168.28 g/mol

VQ-012492

Extra Pure

4-PIPERIDONE HCl monohydrate, extra pure >98%

4-PIPERIDONE HCl monohydrate, extra pure >98%

CAS: 40064-34-4

VQ-019962

4-Piperidylmethanol chemical structure

4-Piperidylmethanol

CAS: 6457-49-4
Formula: C₆H₁₃NO
MW: 115.17 g/mol

VQ-039050

4-Pregnene-17a 20 a,21-triol-3,11-dione chemical structure

4-Pregnene-17a 20 a,21-triol-3,11-dione

CAS: 116-59-6
Formula: C₂₁H₃₀O₅
MW: 362.5 g/mol

VQ-008047

Synthesis

4-Propyl-2-thiouracil, 98% chemical structure

4-Propyl-2-thiouracil, 98%

CAS: 51-52-5
Formula: C₇H₁₀N₂OS
MW: 170.23 g/mol

VQ-011954

Synthesis

4-Propylaniline, 98% chemical structure

4-Propylaniline, 98%

CAS: 2696-84-6
Formula: C₉H₁₃N
MW: 135.21 g/mol

VQ-009356

4-Propylbenzaldehyde, 95% chemical structure

4-Propylbenzaldehyde, 95%

CAS: 28785-06-0
Formula: C₁₀H₁₂O
MW: 148.2 g/mol

VQ-008048

4-Propylfuran-2(5H)-one chemical structure

4-Propylfuran-2(5H)-one

CAS: 21963-27-9
Formula: C₇H₁₀O₂
MW: 126.15 g/mol

VQ-047624

4-Pyridinecarboxaldehyde, 97% chemical structure

4-Pyridinecarboxaldehyde, 97%

CAS: 872-85-5
Formula: C₆H₅NO
MW: 107.11 g/mol

VQ-011820

4-Pyridinemethanol, 99% chemical structure

4-Pyridinemethanol, 99%

CAS: 586-95-8
Formula: C₆H₇NO
MW: 109.13 g/mol

VQ-011821

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales