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Merck
CN

33998

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:
Molecular Weight:
396.52
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
220-859-7
Beilstein/REAXYS Number:
2066919
MDL number:
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technique(s)

HPLC: suitable, gas chromatography (GC): suitable

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

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

grade

analytical standard

product line

VETRANAL®

shelf life

limited shelf life, expiry date on the label

mp

202-204 °C (lit.)

application(s)

clinical testing

format

neat

Quality Level

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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

signalword

Warning

hcodes

Hazard Classifications

Repr. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

涉药品监管产品
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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)
Rapid determination of 88 veterinary drug residues in milk using automated TurborFlow online clean-up mode coupled to liquid chromatography-tandem mass spectrometry.
Zhu WX, et al.
Talanta, 148, 401- 411 (2016)
D A Mallory et al.
Journal of animal science, 88(11), 3568-3578 (2010-07-27)
Two experiments evaluated long-term progestin-based estrus-synchronization programs on the basis of potential for use in facilitating fixed-time AI in estrous cycling and prepubertal beef heifers. In Exp. 1, heifers were assigned to 1 of 2 treatments by age, BW, and
S A Tauck et al.
Theriogenology, 68(2), 162-167 (2007-06-05)
The objectives of this experiment were to compare estrous synchronization responses and AI pregnancy rates of beef heifers using protocols that included either CIDR or MGA as the progestin source. The hypotheses tested were that: (1) estrous synchronization responses after
Sarah Kelly Mortensen et al.
Analytica chimica acta, 586(1-2), 217-222 (2007-03-28)
A confirmatory method has been developed and validated for the determination of chlormadinone acetate (CMA), megestrol acetate (MGA), melengestrol acetate (MLA) and medroxyprogesterone acetate (MPA) in bovine and porcine plasma. Analytes are extracted from plasma samples using matrix-assisted liquid-liquid extraction

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