Wholesale · Research use only
Wholesale Andarine (S-4)
Bulk powder, capsules and white label — B2B supply from our UK and EU facilities. One of the earliest non-steroidal SARMs developed, manufactured to GMP standard at ≥98% purity, verified by HPLC and LC-MS, with a Certificate of Analysis on every batch. Supplied strictly B2B for research purposes only.
≥98% HPLC & LC-MSMOQ from 10gWhite label available
GMP · ISO · HACCPUK & Berlin manufacturingThird-party testedManufacturer direct since 2018
Overview
One of the original non-steroidal SARMs
Early-class compound
One of the first non-steroidal SARMs developed, by GTx Inc.
Short half-life
Shorter acting than most compounds in the class.
Known visual effects
Documented transient vision effects — see the research notes below.
Andarine, commonly designated S-4, is a non-steroidal selective androgen receptor modulator developed by GTx Inc. — the same originator as Ostarine (MK-2866). It was among the first compounds of its class to be investigated, with research programmes examining benign prostatic hyperplasia, muscle wasting and osteoporosis. It remains widely referenced in the SARM literature as an early reference compound for the class.SARMs Direct supplies wholesale Andarine in raw powder and encapsulated formats to research institutions, supplement brands, white label operators and distributors across Europe and internationally. All supply is strictly B2B and sold for research purposes only.
Compound specifications
Andarine at a glance
| Compound name | Andarine |
| Common aliases | S-4, S4, GTx-007, Acetamidoxolutamide |
| CAS number | 401900-40-1 |
| Molecular formula | C₁₉H₁₈F₃N₃O₆ |
| Molecular weight | 441.36 g/mol |
| Compound class | Non-steroidal selective androgen receptor modulator (SARM) |
| Originator | GTx Inc. |
| Purity | ≥98% (HPLC & LC-MS verified) |
| Appearance | White to off-white crystalline powder |
| Storage | Cool, dry place. Protect from light and moisture. Stable at room temperature when sealed. |
Available formats & MOQs
Four ways to order
FORMAT 01
Raw powder
MOQ 10g per batch
Available in 10g, 50g, 100g, 500g and 1kg quantities. Vacuum-sealed in double-layered pouches with no compound names on outer labels. COA included. See raw powders →FORMAT 02
Encapsulated
MOQ 1,000 units per strength
Capsule strengths produced to your specification, supplied in tamper-evident bottles. White label and private label packaging available. See capsules →FORMAT 03
Liquid suspension
MOQ on request
Available on request. Contact us for concentration options and minimum order quantities for your requirement.FORMAT 04
White / private label
MOQ 1,000 units per SKU
Custom branding, label design and packaging, with typical turnaround of 14–21 days from artwork approval. See white label →Research context
Development & study background
All products are supplied for research purposes only and are not intended for human or veterinary use. No claims of safety or efficacy are made.
Andarine was developed by GTx Inc. as a non-steroidal androgen receptor agonist with tissue-selective activity, and was among the earliest compounds to establish the SARM class. Research programmes examined applications in benign prostatic hyperplasia, muscle wasting and osteoporosis. It has a comparatively short half-life relative to later compounds such as Ligandrol and RAD-140, and did not progress to late-stage clinical development.A documented characteristic worth knowing: the Andarine literature consistently reports transient visual effects — a yellow tint to vision and delayed adaptation to darkness — attributed to interaction with binding sites in the retina. The effect is reported as dose-related and reversible on discontinuation. We mention it because it is the single most-documented characteristic of this compound and buyers evaluating it for research programmes should have an accurate picture.Andarine is frequently used as a reference compound in analytical work, including the development of detection and screening methods, given its early position in the class and well-characterised profile.
Quality & documentation
Every batch documented
- GMP-certified manufacturing
- ISO quality management system
- HACCP-compliant production controls
- Independent third-party testing — HPLC, LC-MS, ICP-MS
- Certificate of Analysis (COA) issued per batch
- MSDS available on request
- Research Use Only labelling included
- Full export documentation provided
Who orders wholesale Andarine
B2B buyers we supply
Research institutions
Raw powder for receptor and tissue-selectivity studies.
Analytical laboratories
Reference standard for detection and screening method development.
Supplement brands
Capsule and powder formulation, white label production.
E-commerce operators
Private label SARMs brands.
Distributors
Bulk powder for regional distribution across the EU and UK.
Related compounds
Buyers sourcing Andarine also order
We also supply wholesale peptides via our sister site Peptide-Direct → If your business sources both SARMs and peptides, both operate from the same UK and EU facilities.
Request a wholesale Andarine quote
Tell us the format, strength and quantity you need. We reply within 24 hours with tiered pricing and a current batch COA on request. COAs, pricing and samples available — B2B enquiries only.
Frequently asked questions
What is the CAS number for Andarine (S-4)?
The CAS number for Andarine is 401900-40-1. Its molecular formula is C₁₉H₁₈F₃N₃O₆ with a molecular weight of 441.36 g/mol.
Why is Andarine associated with visual effects?
The literature consistently reports transient visual effects — a yellow tint to vision and delayed adaptation to darkness — attributed to interaction with binding sites in the retina. The effect is reported as dose-related and reversible on discontinuation. It is the most-documented characteristic of the compound and is relevant to any research programme evaluating it.
What purity is your wholesale Andarine?
Our Andarine consistently tests at ≥98% purity, verified by HPLC and LC-MS. A COA from an independent EU-accredited laboratory is available for every batch. See how testing works.
How does Andarine differ from Ostarine?
Both were developed by GTx Inc. Andarine is the earlier compound with a shorter half-life and did not progress as far in clinical development. Ostarine carries the more extensive clinical trial record and is the more widely studied of the two.
What formats is wholesale Andarine available in?
Raw powder (MOQ 10g), encapsulated with strengths produced to your specification (MOQ 1,000 units per strength), and liquid suspension (MOQ on request). White label options are available for all formats.
Do you ship wholesale Andarine internationally?
Yes — to the EU, UK, USA, Canada, Australia and other markets. All shipments include compliant customs documentation, COA and research-use labelling. See our shipping & logistics page for country detail.
Buyers of Andarine also order
All products are sold strictly for laboratory research purposes and are not for human consumption. Buyers are responsible for ensuring compliance with applicable regulations in their jurisdiction.