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

MedKoo CAT#: 205636

CAS#: 1433222-47-9 (TFA)

Description: TAK-448 is an investigational oligopeptide analog of kisspeptin and a potent agonist of the GPR54 receptor. In animals, acute TAK-448 administration stimulates LH/FSH release, whereas continuous sc exposure rapidly down-regulates the pituitary-gonadal axis, with rapid reduction of T levels in a dose-dependent manner. TAK-448 has exhibited potent antitumor activity in rat androgen-dependent prostate cancer models. Therefore, TAK-448 may be useful in the treatment of PC in humans..

Chemical Structure

CAS# 1433222-47-9 (TFA)

Theoretical Analysis

MedKoo Cat#: 205636
Name: TAK-448 TFA
CAS#: 1433222-47-9 (TFA)
Chemical Formula: C60H81F3N16O16
Exact Mass:
Molecular Weight: 1339.4
Elemental Analysis: C, 53.80; H, 6.10; F, 4.26; N, 16.73; O, 19.11

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Related CAS #: 1433222-47-9 (TFA)   1234319-68-6 (free base)    

Synonym: TAK448, TAK 448, TAK-448, TAK-448 TFA

IUPAC/Chemical Name: (S)-2-((2S,4R)-1-(acetyl-D-tyrosyl)-4-hydroxypyrrolidine-2-carboxamido)-N1-((2S,3R)-1-(((S)-1-(2-(((S)-1-(((S)-1-(((S)-1-amino-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-5-(3-methylguanidino)-1-oxopentan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)carbamoyl)hydrazinyl)-1-oxo-3-phenylpropan-2-yl)amino)-3-hydroxy-1-oxobutan-2-yl)succinamide 2,2,2-trifluoroacetate


InChi Code: InChI=1S/C58H80N16O14.C2HF3O2/c1-30(2)22-42(51(82)66-40(16-11-21-63-57(61)62-5)50(81)67-41(49(60)80)25-35-28-64-39-15-10-9-14-38(35)39)70-58(88)73-72-53(84)43(23-33-12-7-6-8-13-33)69-55(86)48(31(3)75)71-52(83)44(27-47(59)79)68-54(85)46-26-37(78)29-74(46)56(87)45(65-32(4)76)24-34-17-19-36(77)20-18-34;3-2(4,5)1(6)7/h6-10,12-15,17-20,28,30-31,37,40-46,48,64,75,77-78H,11,16,21-27,29H2,1-5H3,(H2,59,79)(H2,60,80)(H,65,76)(H,66,82)(H,67,81)(H,68,85)(H,69,86)(H,71,83)(H,72,84)(H3,61,62,63)(H2,70,73,88);(H,6,7)/t31-,37-,40+,41+,42+,43+,44+,45-,46+,48+;/m1./s1

SMILES Code: O=C(N)[C@H](CC1=CNC2=C1C=CC=C2)NC([C@H](CCCNC(NC)=N)NC([C@H](CC(C)C)NC(NNC([C@H](CC3=CC=CC=C3)NC([C@H]([C@H](O)C)NC([C@H](CC(N)=O)NC([C@H]4N(C([C@@H](CC5=CC=C(O)C=C5)NC(C)=O)=O)C[C@H](O)C4)=O)=O)=O)=O)=O)=O)=O.O=C(O)C(F)(F)F

Appearance: Solid powder

Purity: >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).

Solubility: soluble in DMSO, dilute HCl, not soluble in water.

Shelf Life: >5 years if stored properly

Drug Formulation: This drug may be formulated in DMSO or water

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

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 1339.4 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.

Recalculate based on batch purity %
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: Williams R. Discontinued in 2013: oncology drugs. Expert Opin Investig Drugs. 2015 Jan;24(1):95-110. Epub 2014 Oct 14. PubMed PMID: 25315907.

2: MacLean DB, Matsui H, Suri A, Neuwirth R, Colombel M. Sustained exposure to the investigational Kisspeptin analog, TAK-448, down-regulates testosterone into the castration range in healthy males and in patients with prostate cancer: results from two phase 1 studies. J Clin Endocrinol Metab. 2014 Aug;99(8):E1445-53. doi: 10.1210/jc.2013-4236. Epub 2014 Apr 24. PubMed PMID: 24762108.

3: Matsui H, Masaki T, Akinaga Y, Kiba A, Takatsu Y, Nakata D, Tanaka A, Ban J, Matsumoto S, Kumano S, Suzuki A, Ikeda Y, Yamaguchi M, Watanabe T, Ohtaki T, Kusaka M. Pharmacologic profiles of investigational kisspeptin/metastin analogues, TAK-448 and TAK-683, in adult male rats in comparison to the GnRH analogue leuprolide. Eur J Pharmacol. 2014 Jul 15;735:77-85. doi: 10.1016/j.ejphar.2014.03.058. Epub 2014 Apr 18. PubMed PMID: 24747751.

4: Asami T, Nishizawa N, Matsui H, Nishibori K, Ishibashi Y, Horikoshi Y, Nakayama M, Matsumoto S, Tarui N, Yamaguchi M, Matsumoto H, Ohtaki T, Kitada C. Design, synthesis, and biological evaluation of novel investigational nonapeptide KISS1R agonists with testosterone-suppressive activity. J Med Chem. 2013 Nov 14;56(21):8298-307. doi: 10.1021/jm401056w. Epub 2013 Oct 17. PubMed PMID: 24047141.

5: Kuze Y, Jinno F, Kondo T, Asahi S. Highly sensitive liquid chromatography-tandem mass spectrometry method for quantification of TAK-448 in human plasma. J Pharm Biomed Anal. 2013 Sep;83:75-81. doi: 10.1016/j.jpba.2013.04.023. Epub 2013 Apr 29. PubMed PMID: 23708433.

6: Matsui H, Tanaka A, Yokoyama K, Takatsu Y, Ishikawa K, Asami T, Nishizawa N, Suzuki A, Kumano S, Terada M, Kusaka M, Kitada C, Ohtaki T. Chronic administration of the metastin/kisspeptin analog KISS1-305 or the investigational agent TAK-448 suppresses hypothalamic pituitary gonadal function and depletes plasma testosterone in adult male rats. Endocrinology. 2012 Nov;153(11):5297-308. doi: 10.1210/en.2012-1388. Epub 2012 Oct 1. PubMed PMID: 23027808.

7: Yoshida N, Nishizawa N, Matsui H, Moriya Y, Kitada C, Asami T, Matsumoto H. Development and validation of sensitive sandwich ELISAs for two investigational nonapeptide metastin receptor agonists, TAK-448 and TAK-683. J Pharm Biomed Anal. 2012 Nov;70:369-77. doi: 10.1016/j.jpba.2012.05.033. Epub 2012 Jun 1. PubMed PMID: 22748666.