Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
28,554products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,252Pharmacopeial Impurities (EP / USP / BP) 4,401Nitrosamine Impurities 650Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612Metabolites & Degradation Products 4,146API Reference Standards 3,493
Ethyl ((S)-3-mercapto-2-methylpropanoyl)-L-prolinate
- CAS
- 86938-12-7
- Formula
- C11H19NO3S
- MW
- 245.34 g/mol
VQ-044050
Ethyl (1R,2R)-2-(3,4-difluorophenyl)cyclopropane-1-carboxylate
- CAS
- 1006376-61-9
- Formula
- C12H12F2O2
- MW
- 226.22 g/mol
VQ-042521
![Ethyl (1R,3S,4R)-3-{[(tert-butoxy)carbonyl]amino}-4-hydroxycyclohexane-1-carboxylate chemical structure](/media/structures/YFFMJGAVWORNIZ-OUAUKWLOSA-N.svg)
Ethyl (1R,3S,4R)-3-{[(tert-butoxy)carbonyl]amino}-4-hydroxycyclohexane-1-carboxylate
- CAS
- 1392745-22-0
- Formula
- C14H25NO5
- MW
- 287.35 g/mol
VQ-036877
![Ethyl (1R,5R,6R)-7-(tert-butyl)-5-(pentan-3-yloxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate chemical structure](/media/structures/UXYQFYXXRVMJMV-OJEBHDCCSA-N.svg)
Ethyl (1R,5R,6R)-7-(tert-butyl)-5-(pentan-3-yloxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate
- CAS
- 2417645-75-9
- Formula
- C18H31NO3
- MW
- 309.4 g/mol
VQ-038803
![Ethyl (1S,3R,4R)-3-{[(tert-butoxy)carbonyl]amino}-4-hydroxycyclohexane-1-carboxylate chemical structure](/media/structures/YFFMJGAVWORNIZ-HBNTYKKESA-N.svg)
Ethyl (1S,3R,4R)-3-{[(tert-butoxy)carbonyl]amino}-4-hydroxycyclohexane-1-carboxylate
- CAS
- 365997-33-7
- Formula
- C14H25NO5
- MW
- 287.35 g/mol
VQ-036884
![Ethyl (1S,3R,4S)-4-{[(benzyloxy)carbonyl]amino}-3-[(tert-butoxycarbonyl)amino]cyclohexane-1-carboxylate chemical structure](/media/structures/RDLVGFZRIZTRQM-OKZBNKHCSA-N.svg)
Ethyl (1S,3R,4S)-4-{[(benzyloxy)carbonyl]amino}-3-[(tert-butoxycarbonyl)amino]cyclohexane-1-carboxylate
- CAS
- 365998-33-0
- Formula
- C22H32N2O6
- MW
- 420.5 g/mol
VQ-036890
![Ethyl (1S,3S,6R)-7-oxabicyclo[4.1.0]heptane-3-carboxylate chemical structure](/media/structures/ALEAMASTTOYSRW-RNJXMRFFSA-N.svg)
Ethyl (1S,3S,6R)-7-oxabicyclo[4.1.0]heptane-3-carboxylate
- CAS
- 365997-31-5
- Formula
- C9H14O3
- MW
- 170.21 g/mol
VQ-048135
![Ethyl (1S,5R,6R)-5-hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate chemical structure](/media/structures/UAFHUMBBORXHIV-GJMOJQLCSA-N.svg)
Ethyl (1S,5R,6R)-5-hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate
- CAS
- 876014-27-6
- Formula
- C9H12O4
- MW
- 184.19 g/mol
VQ-032300
![Ethyl (1S,5R,6S)-5-isopropoxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate chemical structure](/media/structures/VNIDRCSRWIEVMF-OUAUKWLOSA-N.svg)
Ethyl (1S,5R,6S)-5-isopropoxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate
- CAS
- 2382442-97-7
- Formula
- C12H18O4
- MW
- 226.27 g/mol
VQ-049355
![Ethyl (2R,4R)-5-([1,1'-biphenyl]-4-yl)-4-amino-2-methylpentanoate hydrochloride chemical structure](/media/structures/MYJTZLYRAWUSLB-AEFICSSHSA-N.svg)
Ethyl (2R,4R)-5-([1,1'-biphenyl]-4-yl)-4-amino-2-methylpentanoate hydrochloride
- CAS
- 2101223-17-8
- Formula
- C20H26ClNO2
- MW
- 347.9 g/mol
VQ-042058
Ethyl (2R,5R)-5-(benzyloxyamino)piperidine-2-carboxylate
- CAS
- 2089462-91-7
- Formula
- C15H22N2O3
- MW
- 278.35 g/mol
VQ-029303
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