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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

Oxalic acid, ≥99.5% chemical structure

Oxalic acid, ≥99.5%

CAS: 6153-56-6
Formula: C₂H₆O₆
MW: 126.07 g/mol

VQ-008563

Oxalic acid, 99% chemical structure

Oxalic acid, 99%

CAS: 6153-56-6
Formula: C₂H₆O₆
MW: 126.07 g/mol

VQ-008561

AR

Oxalic acid, GR 99.5%+ chemical structure

Oxalic acid, GR 99.5%+

CAS: 6153-56-6
Formula: C₂H₆O₆
MW: 126.07 g/mol

VQ-008562

Synthesis

Oxalyl chloride, 98% chemical structure

Oxalyl chloride, 98%

CAS: 79-37-8
Formula: C₂Cl₂O₂
MW: 126.92 g/mol

VQ-009158

GC

Oxalyl chloride, for GC >98% chemical structure

Oxalyl chloride, for GC >98%

CAS: 79-37-8
Formula: C₂Cl₂O₂
MW: 126.92 g/mol

VQ-045834

Synthesis

Oxamide, 99% chemical structure

CAS: 471-46-5
Formula: C₂H₄N₂O₂
MW: 88.07 g/mol

VQ-009052

Reference Standard

Oxaprozin Amide chemical structure

Oxaprozin Amide

CAS: 24248-49-5
Formula: C₁₈H₁₆N₂O₂
MW: 292.3 g/mol

In stock

Oxazole-4-carboxylic acid ethyl ester, 97% chemical structure

Oxazole-4-carboxylic acid ethyl ester, 97%

CAS: 23012-14-8
Formula: C₆H₇NO₃
MW: 141.12 g/mol

VQ-012695

Oxazoline chemical structure

CAS: 504-77-8
Formula: C₃H₅NO
MW: 71.08 g/mol

VQ-049221

Oxcarbazepine Enol-Sulfate chemical structure

Oxcarbazepine Enol-Sulfate

CAS: 104746-00-1
Formula: C₁₅H₁₂N₂O₅S
MW: 332.3 g/mol

VQ-033000

Oxcarbazepine N-Sulfate chemical structure

Oxcarbazepine N-Sulfate

CAS: 1159977-54-4
Formula: C₁₅H₁₂N₂O₅S
MW: 332.3 g/mol

VQ-032998

Extra Pure

Oxindole, extra pure >97% chemical structure

Oxindole, extra pure >97%

CAS: 59-48-3
Formula: C₈H₇NO
MW: 133.15 g/mol

VQ-019921

Oxiranecarboxaldehyde chemical structure

Oxiranecarboxaldehyde

CAS: 765-34-4
Formula: C₃H₄O₂
MW: 72.06 g/mol

VQ-049468

Reference Standard

Oxybate Monoterephthalate

Oxybate Monoterephthalate

Formula: C₁₂H₁₂O₆
MW: 252.22 g/mol

In stock

Oxyphenbutazone chemical structure

Oxyphenbutazone

CAS: 129-20-4
Formula: C₁₉H₂₀N₂O₃
MW: 324.4 g/mol

VQ-019524

Oxytetracycline dihydrate, 97% chemical structure

Oxytetracycline dihydrate, 97%

CAS: 6153-64-6
Formula: C₂₂H₂₈N₂O₁₁
MW: 496.5 g/mol

VQ-009053

Oxythiamine chloride hydrochloride, ≥95% (HPLC) chemical structure

Oxythiamine chloride hydrochloride, ≥95% (HPLC)

CAS: 614-05-1
Formula: C₁₂H₁₇Cl₂N₃O₂S
MW: 338.3 g/mol

VQ-011990

AR

p-Amino-N,N-diethylaniline sulphate, GR 99% chemical structure

p-Amino-N,N-diethylaniline sulphate, GR 99%

CAS: 6283-63-2
Formula: C₁₀H₁₈N₂O₄S
MW: 262.33 g/mol

VQ-009532

Extra Pure

p-Anisaldehyde, 99% chemical structure

p-Anisaldehyde, 99%

CAS: 123-11-5
Formula: C₈H₈O₂
MW: 136.15 g/mol

VQ-008151

AR

p-Anisaldehyde, AR chemical structure

p-Anisaldehyde, AR

CAS: 123-11-5
Formula: C₈H₈O₂
MW: 136.15 g/mol

VQ-046655

EP

p-Anisaldehyde, EP 99% chemical structure

p-Anisaldehyde, EP 99%

CAS: 123-11-5
Formula: C₈H₈O₂
MW: 136.15 g/mol

VQ-047090

Synthesis

p-Anisic acid, 98% chemical structure

p-Anisic acid, 98%

CAS: 100-09-4
Formula: C₈H₈O₃
MW: 152.15 g/mol

VQ-008564

Synthesis

p-Anisidine, 98% chemical structure

p-Anisidine, 98%

CAS: 104-94-9
Formula: C₇H₉NO
MW: 123.15 g/mol

VQ-009533

Puriss

p-Anisidine, puriss, 99%+ chemical structure

p-Anisidine, puriss, 99%+

CAS: 104-94-9
Formula: C₇H₉NO
MW: 123.15 g/mol

VQ-009534

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