R 2956 | CAS#42438-88-0 | steroid

MedKoo Cat#: 585090 | Name: R 2956

Description:

WARNING: This product is for research use only, not for human or veterinary use.

R 2956 is a steroid anti-androgen that stimulates cell growth.

Chemical Structure

R 2956

CAS#42438-88-0

Theoretical Analysis

MedKoo Cat#: 585090

Name: R 2956

CAS#: 42438-88-0

Chemical Formula: C21H28O2

Exact Mass: 312.2089

Molecular Weight: 312.45

Elemental Analysis: C, 80.73; H, 9.03; O, 10.24

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.

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Related CAS #

No Data

Synonym

R 2956; R2956; R-2956

IUPAC/Chemical Name

Estra-4,9,11-trien-3-one, 17-hydroxy-2,2,17-trimethyl-, (8alpha,17beta)-

InChi Key

VFKZTCQVCJGPGF-OQRYQMPQSA-N

InChi Code

InChI=1S/C21H28O2/c1-19(2)12-16-13(11-18(19)22)5-6-15-14(16)7-9-20(3)17(15)8-10-21(20,4)23/h7,9,11,15,17,23H,5-6,8,10,12H2,1-4H3/t15-,17-,20-,21-/m0/s1

SMILES Code

C[C@@]12[C@@](C)(O)CC[C@@]1([H])[C@@]3([H])CCC4=CC(C(C)(C)CC4=C3C=C2)=O

Appearance

Solid powder

Purity

>98% (or refer to the Certificate of Analysis)

Shipping Condition

Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition

Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility

Soluble in DMSO

Shelf Life

>3 years if stored properly

Drug Formulation

This drug may be formulated in DMSO

Stock Solution Storage

0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code

2934.99.9001

More Info

Instruction

View handling instruction

Preparing Stock Solutions

The following data is based on the product molecular weight 312.45 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass	1 mg	5 mg	10 mg
1 mM	1.15 mL	5.76 mL	11.51 mL
5 mM	0.23 mL	1.15 mL	2.3 mL
10 mM	0.12 mL	0.58 mL	1.15 mL
50 mM	0.02 mL	0.12 mL	0.23 mL

1: Ostgaard K, Wibe E, Eik-Nes KB. Steroid responsiveness of the human cell line NHIK 3025. Acta Endocrinol (Copenh). 1981 Aug;97(4):551-8. PubMed PMID: 7270009. 2: Brown TR, Rothwell SW, Sultan C, Migeon CJ. Inhibition of androgen binding in human foreskin fibroblasts by antiandrogens. Steroids. 1981 Jun;37(6):635-48. PubMed PMID: 6457421. 3: Takayasu S. Effect of antiandrogens on the binding of androgen to cytosol and nuclei of hamster sebaceous glands. Arch Dermatol Res. 1979 Feb 23;264(1):49-54. PubMed PMID: 443861. 4: Lakey WH, Bruchovsky N, Callaway T, Comeau T, Lieskovsky G, Rennie P, Shnitka T, Wilkin P. Androgen receptors in benign and malignant prostatic tissue. Trans Am Assoc Genitourin Surg. 1979;71:19-22. PubMed PMID: 94714.