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33998

Supelco

Melengestrol acetate

VETRANAL®, analytical standard

Synonym(s):

17α-Acetoxy-6-methyl-16-methylene-4,6-pregnadiene-3,20-dione, MGA

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About This Item

Empirical Formula (Hill Notation):
C25H32O4
CAS Number:
2919-66-6
Molecular Weight:
396.52
Beilstein:
2066919
EC Number:
220-859-7
MDL number:
MFCD00072142
UNSPSC Code:
41116107
PubChem Substance ID:
329754737
NACRES:
NA.24

grade

analytical standard

Quality Level

100

product line

VETRANAL®

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

mp

202-204 °C (lit.)

application(s)

clinical testing

format

neat

SMILES string

[H][C@]12CC[C@@]3(C)[C@@]([H])(CC(=C)[C@]3(OC(C)=O)C(C)=O)[C@]1([H])C=C(C)C4=CC(=O)CC[C@]24C

InChI

1S/C25H32O4/c1-14-11-19-20(23(5)9-7-18(28)13-21(14)23)8-10-24(6)22(19)12-15(2)25(24,16(3)26)29-17(4)27/h11,13,19-20,22H,2,7-10,12H2,1,3-6H3/t19-,20+,22+,23-,24+,25+/m1/s1

InChI key

UDKABVSQKJNZBH-DWNQPYOZSA-N

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General description

Melengestrol acetate belongs to the family of hormones. This acetylgestagen compound is known to elicit a gestagenic effect in vivo.

Application

Melengestrol acetate may be used as a reference standard for the determination of the analyte in:
  • Milk using turborFlow online solid phase extraction (SPE) combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS).
  • Kidney fats by ultra-performance convergence chromatography-tandem mass spectrometry.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Legal Information

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

Pictograms

Health hazard
GHS08

Signal Word

Warning

Hazard Statements

H361fd

Hazard Classifications

Repr. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG6868
BCBT4125
SZBF230XV
SZBC293XV
SZBB102XV

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Simultaneous determination of seven gestagens in kidney fats by Ultra Performance Convergence Chromatography tandem mass spectrometry.
Tao Y, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 988, 143-148 (2015)
D McAloose et al.
Veterinary pathology, 44(3), 320-326 (2007-05-11)
Melengestrol acetate (MGA), a potent synthetic progestin, has been used as a contraceptive in zoo felids since 1975. Mammary gland carcinomas have been linked to MGA treatment in zoo felids, but the histologic features of these tumors and steroid receptor
D R Eborn et al.
Journal of animal science, 91(2), 666-672 (2012-12-12)
Two experiments were conducted over 3 yr to determine pregnancy rates in beef heifers after a timed AI in response to the 7-11 Synch protocol. In Exp. 1, 179 heifers were either fed melengestrol acetate (MGA; 7-11 Synch) or given
Madis Lõhmus et al.
Analytica chimica acta, 586(1-2), 233-238 (2007-03-28)
The use of gestagens in animal fattening is prohibited within the European Union. Recently, the use of spectrometric methods for the detection and confirmation of banned substances was made obligatory. Therefore, conventional high-performance liquid chromatographic (HPLC) methods have been superseded.
G A Perry et al.
Theriogenology, 71(5), 775-779 (2008-11-14)
Treatment with GnRH at the onset of standing estrus increased pregnancy percentages and circulating concentrations of progesterone in repeat breeder dairy cows. The objective of this study was to determine the effect of treatment with GnRH at AI on concentrations
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