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MK 0524

CAS No.
571170-77-9
Chemical Name:
MK 0524
Synonyms
Laropiprant;CS-623;MK 0524;Cardaptive;Laropiprant, >=99%;Laropiprant(MK0524);MK-0524(Laropiprant)/;MK0524;LAROPIPRANT;MK-0524;Laropiprant, 10 mM in DMSO;[(3R)-4-(4-chlorobenzyl)-7-fluoro-5-(Methylsulfonyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl]acetic acid
CBNumber:
CB71872243
Molecular Formula:
C21H19ClFNO4S
Molecular Weight:
435.9
MDL Number:
MFCD11042421
MOL File:
571170-77-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-03 11:24:09

MK 0524 Properties

Melting point 175∶C
Boiling point 710.0±60.0 °C(Predicted)
Density 1.48
storage temp. Sealed in dry,Store in freezer, under -20°C
solubility DMSO:20.0(Max Conc. mg/mL);45.88(Max Conc. mM)
DMF:20.0(Max Conc. mg/mL);45.88(Max Conc. mM)
DMSO:PBS (pH 7.2) (1:1):0.5(Max Conc. mg/mL);1.45(Max Conc. mM)
Ethanol:5.0(Max Conc. mg/mL);11.47(Max Conc. mM)
form Powder
pka 4.54±0.10(Predicted)
color White to off-white
InChIKey NXFFJDQHYLNEJK-CYBMUJFWSA-N
SMILES OC(C[C@@H](CC1)C2=C1C3=CC(F)=CC(S(C)(=O)=O)=C3N2CC4=CC=C(C=C4)Cl)=O
FDA UNII G7N11T8O78
UNSPSC Code 12352200
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P330-P501
WGK Germany  WGK 3
Storage Class 11 - Combustible Solids
NFPA 704
0
2 0

MK 0524 price More Price(51)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SML3572 MK-0524 ≥98% (HPLC) 571170-77-9 5 mg $109 2026-04-30 Buy
Sigma-Aldrich SML3572 MK-0524 ≥98% (HPLC) 571170-77-9 25 mg $439 2026-04-30 Buy
Cayman Chemical 10009835 MK-0524 ≥98% 571170-77-9 1mg $63 2026-04-30 Buy
Cayman Chemical 10009835 MK-0524 ≥98% 571170-77-9 5mg $153 2026-04-30 Buy
Cayman Chemical 10009835 MK-0524 ≥98% 571170-77-9 10mg $274 2026-04-30 Buy
Product number Packaging Price Buy
SML3572 5 mg $109 Buy
SML3572 25 mg $439 Buy
10009835 1mg $63 Buy
10009835 5mg $153 Buy
10009835 10mg $274 Buy

MK 0524 Chemical Properties, Uses, Production

Uses

Laropiprant is a potent and selective DP receptor antagonist with Ki values of 0.57 nM and 2.95 nM for DP receptor and TP Receptor, respectively[1][2][3].

Definition

ChEBI: Laropiprant is an indolyl carboxylic acid.

Biological Activity

MK-0524 is a potent and selective prostaglandin D2 (PGD2) receptor PTGDR (DP1) antagonist with inverse agonist activity (Ki = 570 pM/DP1, 2.95 nM/TP, 745 nM/DP2, >890 nM for EP1/2/3/4, FP and IP). MK-0524 inhibits cAMP accumulation in PGD2-challenged human platelets (IC50 = 90 pM) and blocks PGD2-induced nasal congestion in a sheep allergic rhinitis model in vivo (by 99% at 0.1 mg/kg i.v.). MK-0524 decreases DP1-dependent basal cAMP level in HEK293 (1-100 nM) without affecting DP1-dependent basal ERK1/2 phosphorylation (up to 1 μM).

in vivo

Laropiprant (0-100 mg/kg; p.o. and i.v.; male Sprague-Dawley rats) exhibits good pharmacokinetic profiles[3].

Pharmacokinetic Analysis in Male Sprague-Dawley rats[3]

RouteDose (mg/kg)AUC0-∞ (μM·hr)Clp (mL/min/kg)Vdss (L/kg)T1/2 (hr)
PO122.71.90.77.4
PO596.02.10.97.6
RouteDose (mg/kg)AUC0-∞ (μM·hr)Cmax (μM)Tmax (hr)F(%)
IV552.615.61.2/

IC 50

DP: 0.57 nM (Ki); TP Receptor: 2.95 nM (Ki)

storage

Store at -20°C

References

[1] Labrecque P, et, al. Inverse agonist and pharmacochaperone properties of MK-0524 on the prostanoid DP1 receptor. PLoS One. 2013 Jun 10;8(6):e65767.
[2] Sturino CF, et, al. Discovery of a potent and selective prostaglandin D2 receptor antagonist, [(3R)-4-(4-chloro-benzyl)-7-fluoro-5-(methylsulfonyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl]-acetic acid (MK-0524). J Med Chem. 2007 Feb 22;50(4):794-806. DOI:10.1021/jm0603668
[3] Chang SW, et, al. The pharmacokinetics and disposition of MK-0524, a Prosglandin D2 Receptor 1 antagonist, in rats, dogs and monkeys. Xenobiotica. 2007 May;37(5):514-33. DOI:10.1080/00498250601175565

MK 0524 Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 124)
Supplier Tel Email Country ProdList Advantage
Shanghai Boyle Chemical Co., Ltd. sales@boylechem.com China 2915 55
Chemvon Biotechnology Co., Ltd 021-50790412 info@chemvon.com China 371 57
Chembest Research Laboratories Limited 021-20908456 sales@BioChemBest.com China 5996 61
LGM Pharma 1-(800)-881-8210 inquiries@lgmpharma.com United States 2110 70
China DongFan Chemical Co.,LTD 86-0571-85151182 China 5681 66
Beijing HuaMeiHuLiBiological Chemical 010-56205725 waley188@sohu.com China 12323 58
NCE Biomedical Co.,Ltd. 4000-027-021 |24 +86-13986109188 | +86-15623472865 | +81-08033611988 China 1490 55
Shanghai T&W Pharmaceutical Co., Ltd. +86 21 61551611 China 9874 58
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29985 65

View Latest Price from MK 0524 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Laropiprant pictures 2026-06-02 Laropiprant
571170-77-9
$32.00-115.00 99.97% 10g TargetMol Chemicals Inc.
Laropiprant pictures 2020-01-13 Laropiprant
571170-77-9
$1.00 1g 99% 1ton Career Henan Chemical Co
  • Laropiprant pictures
  • Laropiprant
    571170-77-9
  • $32.00-115.00
  • 99.97%
  • TargetMol Chemicals Inc.
  • Laropiprant pictures
  • Laropiprant
    571170-77-9
  • $1.00
  • 99%
  • Career Henan Chemical Co

MK 0524 Spectrum

Cyclopent[b]indole-3-acetic acid, 4-[(4-chlorophenyl)methyl]-7-fluoro-1,2,3,4-tetrahydro-5-(methylsulfonyl)-, (3R)-Laropiprant MK 0524 MK-0524(Laropiprant)/ Laropiprant(MK0524) (3R)-4-[(4-Chlorophenyl)methyl]-7-fluoro-1,2,3,4-tetrahydro-5-(methylsulfonyl)cyclopent[b]indole-3-acetic acid [(3R)-4-(4-chlorobenzyl)-7-fluoro-5-(Methylsulfonyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl]acetic acid (R)-2-(4-(4-chlorobenzyl)-7-fluoro-5-(Methylsulfonyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid Cardaptive (3R)-4-[(4-Chlorophenyl)methyl]-7-fluoro-1,2,3,4-tetrahydro-5-(methylsulfonyl)cyclopent[b]indole-3-acetic acid Laropiprant MK 0524 Laropiprant, >=99% MK0524;LAROPIPRANT;MK-0524 CS-623 Cyclopent[b]indole-3-acetic acid, 4-[(4-chlorophenyl)methyl]-7-fluoro-1,2,3,4-tetrahydro-5-(methylsulfonyl)-, (3R)- Laropiprant, 10 mM in DMSO Laropiprant 571170-77-9 C21H19ClFNO4S