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Pharma Intermediates & Building Blocks

Pyrroles, Pyrrolidines & Pyrazoles

Browse 108 pyrroles, pyrrolidines & pyrazoles: identifiers, molecular data and pack sizes, with worldwide shipping.

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3-Amino-1H-pyrazole-4-carbohydrazide chemical structure

3-Amino-1H-pyrazole-4-carbohydrazide

CAS: 41621-10-7
Formula: C₄H₇N₅O
MW: 141.13 g/mol

VQ-040634

LR

3-Amino-4-cyanopyrazole, LR chemical structure

3-Amino-4-cyanopyrazole, LR

CAS: 16617-46-2
Formula: C₄H₄N₄
MW: 108.1 g/mol

VQ-020575

3-Aminopyrazole, 98% chemical structure

3-Aminopyrazole, 98%

CAS: 1820-80-0
Formula: C₃H₅N₃
MW: 83.09 g/mol

VQ-012567

3-Ethyl-2,4-dimethylpyrrole, 97% chemical structure

3-Ethyl-2,4-dimethylpyrrole, 97%

CAS: 517-22-6
Formula: C₈H₁₃N
MW: 123.2 g/mol

VQ-012568

3-Maleimidopropionic Acid N-Succinimidyl Ester chemical structure

3-Maleimidopropionic Acid N-Succinimidyl Ester

CAS: 55750-62-4
Formula: C₁₁H₁₀N₂O₆
MW: 266.21 g/mol

VQ-044392

3-Nitro-1H-pyrazole, 98% chemical structure

3-Nitro-1H-pyrazole, 98%

CAS: 26621-44-3
Formula: C₃H₃N₃O₂
MW: 113.08 g/mol

VQ-012569

3,4-Dihydro-2H-pyrrol-5-amine Hydrochloride chemical structure

3,4-Dihydro-2H-pyrrol-5-amine Hydrochloride

CAS: 7544-75-4
Formula: C₄H₉ClN₂
MW: 120.58 g/mol

VQ-040062

Extra Pure

3,5-Bis(difluoromethyl)pyrazole, extra pure chemical structure

3,5-Bis(difluoromethyl)pyrazole, extra pure

CAS: 77614-79-0
Formula: C₅H₄F₄N₂
MW: 168.09 g/mol

VQ-020192

3,5-Dimethylpyrazole, 99% chemical structure

3,5-Dimethylpyrazole, 99%

CAS: 67-51-6
Formula: C₅H₈N₂
MW: 96.13 g/mol

VQ-012566

4-(1-Pyrrolidino)benzaldehyde, 98% chemical structure

4-(1-Pyrrolidino)benzaldehyde, 98%

CAS: 51980-54-2
Formula: C₁₁H₁₃NO
MW: 175.23 g/mol

VQ-012570

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole chemical structure

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

CAS: 269410-08-4
Formula: C₉H₁₅BN₂O₂
MW: 194.04 g/mol

VQ-040779

4-[[[(E)-[(1,3-Dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene]amino]oxy]methyl]Benzoic acid chemical structure

4-[[[(E)-[(1,3-Dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene]amino]oxy]methyl]Benzoic acid

CAS: 149054-56-8
Formula: C₂₀H₁₉N₃O₄
MW: 365.4 g/mol

VQ-049427

4-Bromo-1-methyl-1H-pyrazole, 97% chemical structure

4-Bromo-1-methyl-1H-pyrazole, 97%

CAS: 15803-02-8
Formula: C₄H₅BrN₂
MW: 161 g/mol

VQ-012571

4-Bromopyrazole, 99% chemical structure

4-Bromopyrazole, 99%

CAS: 2075-45-8
Formula: C₃H₃BrN₂
MW: 146.97 g/mol

VQ-012572

4-Fluoro-1H-pyrazole, 95% chemical structure

4-Fluoro-1H-pyrazole, 95%

CAS: 35277-02-2
Formula: C₃H₃FN₂
MW: 86.07 g/mol

VQ-012573

Reference Standard

4-methyl-1H-pyyrole-2-carboxylic acid chemical structure

4-methyl-1H-pyyrole-2-carboxylic acid

CAS: 18711-59-6
Formula: C₆H₇NO₂
MW: 125.13 g/mol

In stock

Reference Standard

4-Nitrophthalimide chemical structure

4-Nitrophthalimide

CAS: 89-40-7
Formula: C₈H₄N₂O₄
MW: 192.13 g/mol

VQ-012575

4-Phenyl-2-Pyrrolidone chemical structure

4-Phenyl-2-Pyrrolidone

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

VQ-032664

5-Bromo-1H-indazole, 97% chemical structure

5-Bromo-1H-indazole, 97%

CAS: 53857-57-1
Formula: C₇H₅BrN₂
MW: 197.03 g/mol

VQ-012577

5-Bromo-4-chloro-1H-indazole, 97% chemical structure

5-Bromo-4-chloro-1H-indazole, 97%

CAS: 1082041-90-4
Formula: C₇H₄BrClN₂
MW: 231.48 g/mol

VQ-012578

5-Bromoisatin, 97% chemical structure

5-Bromoisatin, 97%

CAS: 87-48-9
Formula: C₈H₄BrNO₂
MW: 226.03 g/mol

VQ-012579

Technical

5-Bromoisatin, technical grade 90% chemical structure

5-Bromoisatin, technical grade 90%

CAS: 87-48-9
Formula: C₈H₄BrNO₂
MW: 226.03 g/mol

VQ-046006

5-Chloroisatin, 98% chemical structure

5-Chloroisatin, 98%

CAS: 17630-76-1
Formula: C₈H₄ClNO₂
MW: 181.57 g/mol

VQ-012580

5-Fluoroisatin, 98% chemical structure

5-Fluoroisatin, 98%

CAS: 443-69-6
Formula: C₈H₄FNO₂
MW: 165.12 g/mol

VQ-012581

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