An Analytical Reference Standard
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Research Tool(s)
18003Ibutamoren (mesylate)
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Ibutamoren

Item No. 44475

Product Insert (PDF)GC-MS (PDF)Safety Data Sheet (SDS) (PDF)
Synonyms
Synonyms
  • L-163,191
  • MK-0677
Technical Information
Formal Name
2-amino-N-[(1R)-2-[1,2-dihydro-1-(methylsulfonyl)spiro[3H-indole-3,4′-piperidin]-1′-yl]-2-oxo-1-[(phenylmethoxy)methyl]ethyl]-2-methyl-propanamide
CAS Number
159634-47-6
Molecular Formula
C27H36N4O5S
Formula Weight
528.7
Purity
≥98%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMSO: Slightly soluble: 0.1-1 mg/mlEthanol: Sparingly soluble: 1-10 mg/ml
SMILES
O=C(N1CCC2(C(C=CC=C3)=C3N(S(C)(=O)=O)C2)CC1)[C@H](NC(C(C)(N)C)=O)COCC4=CC=CC=C4
InChi Code
InChI=1S/C27H36N4O5S/c1-26(2,28)25(33)29-22(18-36-17-20-9-5-4-6-10-20)24(32)30-15-13-27(14-16-30)19-31(37(3,34)35)23-12-8-7-11-21(23)27/h4-12,22H,13-19,28H2,1-3H3,(H,29,33)/t22-/m1/s1
InChi Key
UMUPQWIGCOZEOY-JOCHJYFZSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Ibutamoren (Item No. 44475) is an analytical reference standard categorized as a growth hormone secretagogue.1 Ibutamoren has been detected in urine from competition athletes.2 This product is intended for analytical forensic applications. This product is also available as a general research tool (Item No. 18003).

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Patchett, A.A., Nargund, R.P., Tata, J.R., et al. Design and biological activities of L-163,191 (MK-0677): A potent, orally active growth hormone secretagogue. Proc. Natl. Acad. Sci. USA 92(15), 7001-7005 (1995).

    2. Börjesson, A., Lehtihet, M., Andersson, A., et al. Studies of athlete biological passport biomarkers and clinical parameters in male and female users of anabolic androgenic steroids and other doping agents. Drug Test Anal. 12(4), 514-523 (2020).