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R0908

Sigma-Aldrich

R1881

≥98% (HPLC)

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Synonym(s):
(17b)-17-Hydroxy-17-methyl-Estra-4,9,11-trien-3-one, Methyltrienolone, Metribolone, NSC 92858, RU 1881
Empirical Formula (Hill Notation):
C19H24O2
CAS Number:
Molecular Weight:
284.39
MDL number:
PubChem Substance ID:
NACRES:
NA.77

Quality Level

assay

≥98% (HPLC)

form

powder

optical activity

[α]/D -48 to -68°

drug control

USDEA Schedule IIIN; Home Office Schedule 4.2; regulated under CDSA - not available from Sigma-Aldrich Canada

color

light yellow to yellow

solubility

DMSO: ≥10 mg/mL

storage temp.

2-8°C

SMILES string

C[C@]1(O)CC[C@H]2[C@@H]3CCC4=CC(=O)CCC4=C3C=C[C@]12C

InChI

1S/C19H24O2/c1-18-9-7-15-14-6-4-13(20)11-12(14)3-5-16(15)17(18)8-10-19(18,2)21/h7,9,11,16-17,21H,3-6,8,10H2,1-2H3/t16-,17+,18+,19+/m1/s1

InChI key

CCCIJQPRIXGQOE-XWSJACJDSA-N

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Show Differences

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This Item
E3375T1875SML0438
vibrant-m

R0908

R1881

vibrant-m

E3375

trans-Androsterone

vibrant-m

T1875

Testosterone propionate

vibrant-m

SML0438

Mibolerone

form

powder

form

powder

form

solid

form

powder

drug control

USDEA Schedule IIIN; Home Office Schedule 4.2; regulated under CDSA - not available from Sigma-Aldrich Canada

drug control

-

drug control

USDEA Schedule III; Home Office Schedule 4.2; regulated under CDSA - not available from Sigma-Aldrich Canada

drug control

USDEA Schedule IIIN; regulated under CDSA - not available from Sigma-Aldrich Canada

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

storage temp.

2-8°C

storage temp.

room temp

storage temp.

room temp

storage temp.

2-8°C

solubility

DMSO: ≥10 mg/mL

solubility

chloroform: 50 mg/mL, clear to slightly hazy, colorless to faintly yellow

solubility

acetone: soluble 1 in 4 of acetone, chloroform: soluble 50 mg/ml, clear, colorless to faintly yellow, ethanol: soluble 1 in 6 of ethanol, ethyl oleate: soluble 1 in 20 of ethyl oleate, propylene glycol: soluble 1 in 30 of propylene glycol, ethanol: 10 mg/mL, 45% (w/v) aq 2-hydroxypropyl-β-cyclodextrin: 4.4 mg/mL, H2O: insoluble, oil: soluble

solubility

DMSO: 5 mg/mL, clear (warmed)

Biochem/physiol Actions

Androgen receptors (ARs) are nuclear hormone receptors/transcription factors. R1881, also known as methyltrienolone, is a synthetic androgen. It is the gold standard AR agonist.

Features and Benefits

This compound is featured on the Nuclear Receptors (Steroids) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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