Maropitant free base

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 120201

CAS#: 147116-67-4 (free base)

Description: Maropitan, also known as CJ 11972, is a neurokinin (NK1) receptor antagonist, which was developed by Zoetis specifically for the treatment of motion sickness and vomiting in dogs. It was approved by the FDA in 2007 for use in dogs, and more recently has also been approved for use in cats.

Chemical Structure

Maropitant free base
CAS# 147116-67-4 (free base)

Theoretical Analysis

MedKoo Cat#: 120201
Name: Maropitant free base
CAS#: 147116-67-4 (free base)
Chemical Formula: C32H40N2O
Exact Mass: 468.31406
Molecular Weight: 468.6728
Elemental Analysis: C, 82.01; H, 8.60; N, 5.98; O, 3.41

Size Price Shipping out time Quantity
10mg USD 150 2 Weeks
25mg USD 250 2 Weeks
50mg USD 450 2 Weeks
100mg USD 750 2 Weeks
200mg USD 1250 2 Weeks
500mg USD 2150 2 Weeks
1g USD 3250 2 Weeks
2g USD 5450 2 Weeks
5g USD 7950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-02-25. Prices are subject to change without notice.

Maropitant free base, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Related CAS #: 862543-54-2 (citrate)   359875-09-5 (citrate hydrate)   147116-67-4 (free base)    

Synonym: CJ-11,972; CJ 11,972; CJ11,972; CJ-11972; CJ 11972; CJ11972; Maropitant; brand name: Cerenia

IUPAC/Chemical Name: (1R,2S,3S,4R)-2-benzhydryl-N-(5-(tert-butyl)-2-methoxybenzyl)quinuclidin-3-amine


InChi Code: InChI=1S/C32H40N2O/c1-32(2,3)27-15-16-28(35-4)26(21-27)22-33-30-25-17-19-34(20-18-25)31(30)29(23-11-7-5-8-12-23)24-13-9-6-10-14-24/h5-16,21,25,29-31,33H,17-20,22H2,1-4H3/t30-,31-/m0/s1

SMILES Code: COC1=CC=C(C(C)(C)C)C=C1CN[C@@H]2[C@H](C(C3=CC=CC=C3)C4=CC=CC=C4)[N@]5CC[C@]2([H])CC5

white solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 468.6728 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Johnson RA. Maropitant prevented vomiting but not gastroesophageal reflux in anesthetized dogs premedicated with acepromazine-hydromorphone. Vet Anaesth Analg. 2013 Dec 16. doi: 10.1111/vaa.12120. [Epub ahead of print] PubMed PMID: 24330310.

2: Niyom S, Boscan P, Twedt DC, Monnet E, Eickhoff JC. Effect of maropitant, a neurokinin-1 receptor antagonist, on the minimum alveolar concentration of sevoflurane during stimulation of the ovarian ligament in cats. Vet Anaesth Analg. 2013 Jul;40(4):425-31. doi: 10.1111/vaa.12017. Epub 2013 Feb 13. PubMed PMID: 23406526.

3: Lesman SP, Boucher JF, Grover GS, Cox SR, Bidgood TL. The pharmacokinetics of maropitant citrate dosed orally to dogs at 2 mg/kg and 8 mg/kg once daily for 14 days consecutive days. J Vet Pharmacol Ther. 2013 Oct;36(5):462-70. doi: 10.1111/jvp.12027. Epub 2012 Nov 20. PubMed PMID: 23167698.

4: Hay Kraus BL. Efficacy of maropitant in preventing vomiting in dogs premedicated with hydromorphone. Vet Anaesth Analg. 2013 Jan;40(1):28-34. doi: 10.1111/j.1467-2995.2012.00788.x. Epub 2012 Oct 20. PubMed PMID: 23082784.

5: Boscan P, Monnet E, Mama K, Twedt DC, Congdon J, Steffey EP. Effect of maropitant, a neurokinin 1 receptor antagonist, on anesthetic requirements during noxious visceral stimulation of the ovary in dogs. Am J Vet Res. 2011 Dec;72(12):1576-9. doi: 10.2460/ajvr.72.12.1576. PubMed PMID: 22126683.

6: Alvillar BM, Boscan P, Mama KR, Ferreira TH, Congdon J, Twedt DC. Effect of epidural and intravenous use of the neurokinin-1 (NK-1) receptor antagonist maropitant on the sevoflurane minimum alveolar concentration (MAC) in dogs. Vet Anaesth Analg. 2012 Mar;39(2):201-5. doi: 10.1111/j.1467-2995.2011.00670.x. Epub 2011 Nov 22. PubMed PMID: 22103569.

7: Mathis A, Lee K, Alibhai HI. The use of maropitant to prevent vomiting induced by epidural administration of preservative free morphine through an epidural catheter in a dog. Vet Anaesth Analg. 2011 Sep;38(5):516-7. doi: 10.1111/j.1467-2995.2011.00645.x. PubMed PMID: 21831059.

8: Williams-Fritze MJ, Carlson Scholz JA, Zeiss C, Deng Y, Wilson SR, Franklin R, Smith PC. Maropitant citrate for treatment of ulcerative dermatitis in mice with a C57BL/6 background. J Am Assoc Lab Anim Sci. 2011 Mar;50(2):221-6. PubMed PMID: 21439216; PubMed Central PMCID: PMC3061423.

9: Rau SE, Barber LG, Burgess KE. Efficacy of maropitant in the prevention of delayed vomiting associated with administration of doxorubicin to dogs. J Vet Intern Med. 2010 Nov-Dec;24(6):1452-7. doi: 10.1111/j.1939-1676.2010.0611.x. Epub 2010 Oct 12. PubMed PMID: 21039869.

10: Narishetty ST, Galvan B, Coscarelli E, Aleo M, Fleck T, Humphrey W, McCall RB. Effect of refrigeration of the antiemetic Cerenia (maropitant) on pain on injection. Vet Ther. 2009 Fall;10(3):93-102. PubMed PMID: 20037963.

Additional Information