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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Pyrrole, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Pyrrole impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Pyrrole-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Pyrrole Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methyl-4-propyl-1H-pyrrole-2-carboxaldehyde-d3 Stable Isotopes CS-T-102217 Not Available Enquire
2,2'-(2-Hydroxytrimethylene)bis[1-methyl-dihydropyrrole]-d6 Stable Isotopes CS-T-97404 1346600-76-7 Enquire
2-Methyloctahydropyrrolo[3,4-c]pyrrole-d3 Stable Isotopes CS-T-100009 Not Available Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R)-3,4-Dihydro-5-[(4-nitrophenyl)methyl]-2-[(R)-phenyl[(tr... Impurity CS-O-52479 1818351-75-5 Enquire
(R)-N-(5-(2-(2,5-difluorophenyl) pyrrolidin-1-yl)pyrazolo[1,... Impurity CS-O-60585 ---- Enquire
(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic Acid Impurity CS-O-10632 178172-26-4 Enquire
(αR,2R)-3,4-Dihydro-5-[(4-nitrophenyl)methyl]-α-phenyl-2H-py... Impurity CS-O-52480 1628836-09-8 Enquire
1-(1-Phenylpropan-2-yl)-1H-pyrrole-2-carboxylic Acid Impurity CS-T-102286 1432680-68-6 Enquire
1-benzyl-4-ethyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid Impurity CS-O-54949 2376462-10-9 Enquire
1-methyl-4-nitro-N-propyl-1H-pyrrole-2-carboxamide Impurity CS-O-48893 127794-26-7 In Stock
2-Benzoyl-5-bromo-1H-pyrrole Impurity CS-ED-01140 130190-60-2 Enquire
2-tert-butyl 4-ethyl 3,5-dimethyl-1H-pyrrole-2,4-dicarboxyla... Impurity CS-O-31192 86770-31-2 Enquire
4-(ethoxycarbonyl)-3,5-dimethyl-1H-pyrrole-2-carboxylic acid Impurity CS-O-31191 5442-91-1 Enquire
4,4-(2,2-difluorobenzo[d][1,3]dioxole-4,7-diyl)bis(1H-pyrrol... Impurity CS-O-03472 Not Available Enquire
5-(2-Fluorophenyl)-N-methyl-1H-pyrrole-3-methanamine Impurity CS-EO-01522 1610043-62-3 In Stock
5-(2-Fluorophenyl)-N-methyl-1H-pyrrole-3-methanamine fumaric... Impurity CS-O-52647 1885094-64-3 Enquire
5-Chloro-2-Methyl-2,3-Dihydro-Benzo-[2,3:6,7]-Oxepino- [4,5-... Impurity CS-O-32209 934996-79-9 Enquire
Acalabrutinib-3,4-dihydropyrrole Impurity CS-O-55143 ---- Enquire
Ethyl (S)-5-Amino-3,4-dihydro-2H-pyrrole-2-carboxylate Hydro... Impurity CS-O-54835 110971-82-9 Enquire
ethyl 1-benzyl-4-ethyl-2,5-dihydro-1H-pyrrole-3-carboxylate Impurity CS-O-54948 2270173-58-3 Enquire
Methyl (2S)-5-amino-3,4-dihydro-2H-pyrrole-2-carboxylate hyd... Impurity CS-O-54834 110971-80-7 Enquire
N-(2-(Diethylamino)ethyl)-5-((5-fluoro-2-oxoindolin-3-yliden... Impurity CS-O-54363 342641-94-5 Enquire
Oseltamivir Pyrrole analog Impurity CS-O-36190 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-tert-Butyl 2-(((tert-butyldimethylsilyl)oxy)methyl)-5-ox... Intermediate CS-T-09938 81658-27-7 In Stock
2-(4-tert-Butylphenyl)-4-phenyl-1H-pyrrole Intermediate CS-O-51168 1398056-88-6 Enquire
5-(2-fluorophenyl)-1H-pyrrole-3-carbaldehyde Intermediate CS-O-32435 881674-56-2 In Stock
5-(3-Fluorophenyl)-1H-pyrrole-3-carboxaldehyde Intermediate CS-ED-41981 2827733-27-5 Enquire
Octahydrocyclopenta[c]pyrrole Intermediate CS-O-54254 5661-03-0 Enquire
Pyrrole-2-carboxaldehyde Intermediate CS-T-41231 1003-29-8 In Stock
Tert-Butylhexahydropyrrolo[3,4-b]pyrrole-1(2H)-carboxylate Intermediate CS-O-49773 185693-02-1 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-Boc-2-carbamoyl-2,3-dihydro-1H-pyrrole Fine Chemicals CS-T-67665 709031-38-9 Enquire
(S)-Methyl 5-methoxy-3,4-dihydro-2H-pyrrole-2-carboxylate Fine Chemicals CS-O-54315 173142-47-7 Enquire
1-benzyl 3-methyl 4-ethyl-1H-pyrrole-1,3(2H,5H)-dicarboxylat... Fine Chemicals CS-O-37115 2375732-94-6 Enquire
1-benzyl 3-methyl 4-hydroxy-1H-pyrrole-1,3(2H,5H)-dicarboxyl... Fine Chemicals CS-O-37113 2387105-17-9 Enquire
2,2-Bipyrrole Fine Chemicals CS-T-06633 10087-64-6 Enquire
2,3-Dihydro-1H-pyrrole Fine Chemicals CS-O-59875 28350-87-0 Enquire
2,4-diphenyl-1H-pyrrole Fine Chemicals CS-ED-41978 3274-56-4 Enquire
2-Benzoyl-4-bromo-1H-pyrrole Fine Chemicals CS-ED-01139 142231-05-8 Enquire
2-Chloro-5-(2-fluorophenyl)-1H-pyrrole-3-carboxaldehyde Fine Chemicals CS-O-52861 2169267-53-0 Enquire
2-methyl-5-phenyl-1H-pyrrole Fine Chemicals CS-O-36096 3042-21-5 Enquire
3-Methyl-4-phenyl-1H-pyrrole Fine Chemicals CS-O-57603 ---- Enquire
5-Methyl-1H-pyrrole-2-carbonitrile Fine Chemicals CS-ZG-22399 26173-92-2 Enquire
Ethyl 2-chloro-5-(2-fluorophenyl)-1H-pyrrole-3-carboxylate Fine Chemicals CS-O-41184 881674-01-7 Enquire
methyl 4-amino-1-methylpyrrole-2-carboxylate Fine Chemicals CS-ED-42067 72083-62-6 Enquire
Vonoprazan Impurity 47 Fine Chemicals CS-O-37520 1240948-72-4 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2S,3aS,6aS)-1-nitrosooctahydrocyclopenta[b]pyrrole-2-carbox... Nitrosamine CS-O-52956 Not Available In Stock
benzyl (2S,3aS,6aS)-1-nitrosooctahydrocyclopenta[b]pyrrole-2... Nitrosamine CS-O-52952 ---- Enquire
N-Nitroso Ketorolac 2-Benzoylpyrrole Impurity Nitrosamine CS-O-46374 Not Available Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Methylpyrrole-d4 (ring-d4) Stable Isotope Reagent CS-C-02131 190386-37-9 Enquire


Natural Products

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(imidazo[1,2-a]pyridin-3-yl)-4-(2-(morpholine-4-carbonyl)-... Natural Products CS-O-48535 603281-31-8 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(3aS,4S,6aS)-2,2-dimethyl-6-oxotetrahydro-3aH-[1,3]dioxolo[4... Building Blocks CS-O-46880 1654009-11-6 Enquire
1H-Pyrrole-2,5-dicarboxylic Acid Building Blocks CS-ED-41549 937-27-9 Enquire
2,5-diethyl-1H-pyrrole Building Blocks CS-BX-02638 766-95-0 Enquire
3-Chloro-1H-pyrrole Building Blocks CS-TA-93736 69624-11-9 Enquire
5-benzoyl-2,3-dibromo-1H-pyrrole Building Blocks CS-EL-09158 50372-61-7 Enquire
5-Bromo-1H-pyrrole-3-carbaldehyde Building Blocks CS-O-48779 881676-32-0 Enquire
Dimethyl 1H-pyrrole-2,3-dicarboxylate Building Blocks CS-O-58718 2818-08-8 In Stock
Methyl 5-(2,4-difluorophenyl)-4-methoxy-1H-pyrrole-3-carboxy... Building Blocks CS-O-45283 1902955-29-6 In Stock
N-BOC-2,4-dibromopyrrole Building Blocks CS-T-07523 117657-38-2 Enquire
Pyrrolezanthine Building Blocks CS-O-57026 500574-37-8 Enquire


Deuterated Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
methyl 1-(methyl-d3)-1H-pyrrole-2-carboxylate Deuterated Reagents CS-O-42347 37619-24-2(unlabel) Enquire