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5.08015

Sigma-Aldrich

CTOP

Synonym(s):

CTOP, µ Opioid Receptor Antagonist, CTOP

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About This Item

Empirical Formula (Hill Notation):
C50H67N11O11S2
CAS Number:
103429-31-8
Molecular Weight:
1062.26
MDL number:
MFCD00076708
UNSPSC Code:
12352200
NACRES:
NA.77

assay

≥95% (HPLC)

Quality Level

100

form

solid

potency

0.96 nM Ki

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

water: soluble

storage temp.

−20°C

InChI

1S/C50H67N11O11S2/c1-26(62)39(42(53)65)59-49(72)41-50(3,4)74-73-25-38(58-43(66)33(52)21-28-11-6-5-7-12-28)47(70)56-36(22-29-16-18-31(64)19-17-29)45(68)57-37(23-30-24-54-34-14-9-8-13-32(30)34)46(69)55-35(15-10-20-51)44(67)60-40(27(2)63)48(71)61-41/h5-9,11-14,16-19,24,26-27,33,35-41,54,62-64H,10,15,20-23,25,51-52H2,1-4H3,(H2,53,65)(H,55,69)(H,56,70)(H,57,68)(H,58,66)(H,59,72)(H,60,67)(H,61,71)

InChI key

PZWWYAHWHHNCHO-UHFFFAOYSA-N

General description

A potent antagonist highly selective for µ opioid receptor (Ki = 0.96 nM for µ receptor and >10,000 nM for δ receptors). Often used for studying the functional roles of µ opioid receptors in both central and peripheral nervous systems.

Biochem/physiol Actions

Primary Target
mu opioid

Warning

Toxicity: Standard Handling (A)

Sequence

D-Phe-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (Orn: ornithine; Pen: penicillamine; SS bond: 2-7)

Physical form

Supplied as trifluoracetate salt

Other Notes

Feng, Y., et al. 2012. Curr Drug Targets.13, 230.
Hawkins, N., et al. 1989. J. Pharmacol. Exp. Ther.248, 73.
Gulya, K., et al. 1988. Eur. J. Pharmacol.150, 355.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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