MK-0517 (Fosaprepitant)


neurokinin-1 receptor antagonist

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Catalog No. A11756

Availability:Stock in USAIn stock

Product Name Catalog No. Price Qty
MK-0517 (Fosaprepitant) 5mg A11756-5

Regular Price: $80.00

Special Price: $72.00

MK-0517 (Fosaprepitant) 10mg A11756-10

Regular Price: $140.00

Special Price: $126.00

MK-0517 (Fosaprepitant) 25mg A11756-25

Regular Price: $250.00

Special Price: $225.00

MK-0517 (Fosaprepitant) 50mg A11756-50

Regular Price: $450.00

Special Price: $405.00

MK-0517 (Fosaprepitant) 10mM * 1mL in DMSO A11756-10mM-D

Regular Price: $157.00

Special Price: $141.30

Products are for laboratory research use only. Not for human use. We do not sell to patients.

Quick Overview

Fosaprepitant (MK-0517, L-758,298) is a water-soluble phosphoryl prodrug for Aprepitant which is a NK1 antagonist.

MK-0517 (Fosaprepitant)

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Chemical Information

Catalog Num A11756
Actions Antagonist
M. Wt 0
Formula C23H22F7N4O6P
Solubility DMSO
Purity >98%
Storage at -20°C 3 years Powder
CAS No. 172673-20-0
Synonyms MK-0517, L-758,298
SMILES code C[[email protected]](C1=CC(=CC(=C1)C(F)(F)F)C(F)(F)F)O[[email protected]@H]2[[email protected]@H](N(CCO2)CC3=NC(=O)N(N3)P(=O)(O)O)C4=CC=C(C=C4)F
Chemical Name Phosphonic acid, P-[3-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-2,5-dihydro-5-oxo-1H-1,2,4-triazol-1-yl]

Biological Activity

Fosaprepitant (MK-0517, L-758,298) is a water-soluble phosphoryl prodrug for Aprepitant which is a NK1 antagonist.


Solubility (25°C)* In vitro DMSO 201 mg/mL (200.03 mM)
Water 135 mg/mL (134.35 mM)
Ethanol <1 mg/mL (<1 mM)
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Adooq tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

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