Oxazinanes
Medchemexpress LLC (6S,12aR)-Tadalafil | 171596-28-4 | MFCD21363860 | 99.3% | 389.40 g·mol^-1 | C22H19N3O4 | 10 MG
(6S,12aR)-Tadalafil is a stereoisomeric impurity of tadalafil used as an analytical reference standard and research tool. It is a potent phosphodiesterase type 5 (PDE5) inhibitor (reported IC50 ≈ 5 nM) and is characterized for impurity profiling and pharmacological studies.
- High chemical purity (reported 99.3%).
- Well characterized: CAS 171596-28-4 and molecular formula C22H19N3O4.
- Suitable as a reference standard for analytical method development and impurity profiling.
- Useful for pharmacological research into PDE5 activity and blood-pressure effects.
- Available in small weighed packs for laboratory use (e.g., 10 MG).
![Medchemexpress LLC Mal((3S,3aR,6S,6aR)-hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-glu-pab-exatecan | 3059991-66-8 | 96.1% | 1852.91 | C87H118FN9O34 | 50 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000203287.png-250.jpg)
Medchemexpress LLC Mal((3S,3aR,6S,6aR)-hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-glu-pab-exatecan | 3059991-66-8 | 96.1% | 1852.91 | C87H118FN9O34 | 50 MG
Maleimide-PEG12 β-Glu-PAB-Exatecan is a drug-linker intermediate designed for antibody-drug conjugate (ADC) synthesis. The molecule contains a maleimide functional group for thiol conjugation, a PEG12 spacer to increase hydrophilicity and spacing, and a β-glutamate PAB linkage to an exatecan payload. The material is high molecular weight and supplied as a research quantity.
- Drug-linker intermediate for ADC synthesis.
- Maleimide functional group for thiol conjugation.
- PEG12 spacer provides hydrophilicity and spacing.
- β-glu-PAB cleavable linker enables payload release.
- High molecular weight and analytical purity suitable for research use.
Matrix Scientific 3,4-DIHYDRO-2H-1,4-BENZOXAZ-1G
3,4-Dihydro-2H-1,4-benzoxazine, 1g,C8H9NO, MFCD02181098, mw 135.17, [5735-53-5]
![Medchemexpress LLC 1-methyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | 5334-56-5 | MFCD01312343 | 150.14 g/mol | C6H6N4O | 5 G](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000209958.png-250.jpg)
Medchemexpress LLC 1-methyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | 5334-56-5 | MFCD01312343 | 150.14 g/mol | C6H6N4O | 5 G
1-methyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 5334-56-5) is a pyrazolopyrimidinone small-molecule used as a biochemical reagent and reference compound in life-science research.
- Chemical formula C6H6N4O, molecular weight 150.14 g/mol.
- Solid form with a reported melting point >250 °C.
- Commonly used as a biochemical reagent and reference compound in pharmacological and biochemical studies.
- Typical supplier package sizes include small gram quantities for research use.
- Reported purities vary by supplier; verify the exact purity from the product-specific safety data sheet or manufacturer listing.
Medchemexpress LLC 4-Methyl-2,3-dihydrocyclopenta[b]indol-1(4H)-one | 50776-26-6 | 99.9% | C12H11NO | 250 MG
4-Methyl-2,3-dihydrocyclopenta[b]indol-1(4H)-one is a drug intermediate used for the synthesis of various active compounds. This product is supplied as a light yellow to yellow solid.
- Utilized as a drug intermediate
- Consistent with structure by LCMS
- High purity of 99.9% by LCMS
Medchemexpress LLC 3,4-dihydro-6,7-isoquinolinediol | 4602-83-9 | MFCD00143490 | 98.7% | 163.17 g/mol | C9H9NO2 | 10 MG
3,4-dihydro-6,7-isoquinolinediol is a small-molecule research reagent commonly used in biochemical and pharmacological studies where isoquinoline derivatives are required. The compound is supplied as a high-purity solid suitable for laboratory experiments and analytical work.
- High purity: 98.7%.
- Molecular formula: C9H9NO2.
- Molecular weight: 163.17 g/mol.
- CAS number: 4602-83-9.
- Available pack sizes include 10 mg, 25 mg, 50 mg, and 100 mg.
TARGETMOL CHEMICALS INC ETAMICASTAT HYDROCHLORID 5MG
Also available in 1 mg 10 mg 25 mg 50 mg 100 mg 500 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. Etamicastat hydrochloride (BIA 5-453 hydrochloride) is a peripherally selective dopamine beta-hydroxylase inhibitor that reduces hypertension. purity: 99%
TARGETMOL CHEMICALS INC MEDIFOXAMINE 5MG
Also available in 1 mg 10 mg 25 mg 50 mg 100 mg 500 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. Medifoxamine (LG 152) is a selective non-monoamine oxidase inhibitor that exhibits antidepressant activity through inhibition of 5 HT reuptake.Medifoxamine preferentially inhibits dopamine reuptake. purity: 98%
TARGETMOL CHEMICALS INC TANDOSPIRONE CITRATE 25MG
Also available in 2 mg 5 mg 10 mg 50 mg 100 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. Tandospirone citrate (SM-3997 citrate) is a potent and selective 5-HT1A receptor partial agonist (Ki 27 nM)purity: 99%
TARGETMOL CHEMICALS INC SRT1720 HYDROCHLORIDE 5MG
Also available in 1 mg 2 mg 10 mg 25 mg 50 mg 100 mg 200 mg 500 mg 1 mL 10 mM (in DMSO) and bulk. Please contact Fisher for quotes. SRT1720 hydrochloride (SRT1720 HCl) is a selective activator of SIRT1 (EC1.5 0.16 uM) and shows less potent activities on SIRT2/SIRT3 (EC1.5s 37 uM/300 uM). purity: 99%
TARGETMOL CHEMICALS INC PONATINIB HYDROCHLORIDE 10MG
Also available in 25 mg 50 mg 100 mg 200 mg 500 mg and bulk. Please contact Fisher for quotes. Ponatinib Hydrochloride (AP-24534 Hydrochloride) is a hydrochloride of ponatinib. Ponatinib is an orally active multi-targeted kinase inhibitor with IC50s of 0.37 nM 1.1 nM 1.5 nM 2.2 nM and 5.4 nM for Abl PDGFR(alpha) VEGFR2 FGFR1 and Src respectively. purity: 100%