Struggling with unreliable Z-Endoxifen supplies for your pharma R&D or manufacturing? As a Technical Director or Purchasing Manager, get pharmaceutical-grade Z-Endoxifen with full FDA DMF compliance, fast delivery to USA, and 30% cost savings – no quality compromises.
Get Free Quote in 24h + Free SampleZ-Endoxifen, also known as Z-endoxifen or endoxifen (Z-isomer), is a potent selective estrogen receptor modulator (SERM) and the most active metabolite of tamoxifen, widely recognized in pharmaceutical research and development for its superior efficacy in estrogen receptor-positive (ER+) breast cancer treatment. Unlike standard tamoxifen, Z-Endoxifen exhibits up to 100-fold greater potency in binding to estrogen receptors, making it a game-changer for next-generation hormone therapies. As a leading Z-Endoxifen supplier, Global Technology Co., Ltd delivers this high-purity API (Active Pharmaceutical Ingredient) in powder form, compliant with GMP standards and supported by FDA DMF filings for seamless USA imports.
In the evolving landscape of oncology pharmaceuticals, buy Z-Endoxifen has become essential for R&D labs, contract manufacturers, and biotech firms targeting precision medicine. Discovered as the primary metabolite responsible for tamoxifen's therapeutic effects, Z-Endoxifen bypasses the metabolic variability that affects 30-50% of patients on standard tamoxifen therapy, according to studies published in the Journal of Clinical Oncology (2023 data). This compound's mechanism involves high-affinity binding to ERα and ERβ, potent antagonism of estrogen-induced proliferation in breast cancer cells, and additional benefits like aromatase inhibition – all at concentrations far lower than tamoxifen itself.
From a chemical perspective, Z-Endoxifen (CAS: 35231-80-2; molecular formula C26H29NO2; molecular weight 387.52 g/mol) is the trans-isomer of endoxifen, characterized by its triphenyl ethylene structure. Purity levels we supply exceed 99% (HPLC), with chiral purity >99% (Z-isomer), ensuring it's ideal for clinical trials and commercial formulations. In the USA market, where breast cancer affects over 280,000 women annually (American Cancer Society, 2026 projections), demand for Z-Endoxifen powder surges due to ongoing Phase III trials (e.g., by Apexian Pharmaceuticals) positioning it as a tamoxifen alternative with fewer side effects and better bioavailability.
Our deep industry insight reveals why corporate purchasing managers prioritize pharmaceutical grade Z-Endoxifen: inconsistent metabolite conversion in patients leads to suboptimal outcomes, driving the shift to direct Z-Endoxifen administration. Research from the National Cancer Institute (NCI) highlights its role in overcoming CYP2D6 polymorphisms, which impair tamoxifen activation in 7-10% of Caucasians and higher in other populations. For B2B buyers, sourcing from China’s robust supply chain offers 25-40% cost reductions versus Western suppliers, without sacrificing quality – especially when backed by our university-lab collaborations and tonnage-scale production.
Global Technology Co., Ltd stands out as your reliable Z-Endoxifen manufacturer, with investments in GMP-certified facilities capable of grams-to-tons output. We address key challenges like high shipping costs through optimized DDP (Delivered Duty Paid) logistics to USA ports, reducing total landed costs by 20%. Technical specs include low impurity profiles (<0.1% tamoxifen), stability under ICH guidelines (Q1A), and full documentation for IND/NDA filings. Whether for API synthesis, formulation development, or research chemicals, our Z-Endoxifen wholesale options cater to your ROI-focused needs.
Delving deeper, Z-Endoxifen's pharmacokinetics show rapid absorption (Tmax ~2-4 hours), extensive protein binding (95%), and a half-life of 72-96 hours, enabling once-daily dosing in trials. Preclinical data from mouse xenograft models demonstrate 70-90% tumor growth inhibition at 4-8 mg/kg, surpassing tamoxifen. In human trials (e.g., NCT05270168), it achieves steady-state levels 2-5x higher than metabolite-equivalent tamoxifen doses. For supply chain managers, this translates to predictable scaling: our MOQ starts at 1g for R&D, scaling to 100kg+ for CMO partners.
In 2026, with FDA fast-track designations for Z-Endoxifen analogs, English-speaking regions like the USA see skyrocketing demand – projected 15% CAGR per Grand View Research. Yet, pain points persist: Western prices hit $50,000/kg, low-quality imports fail purity tests, and delays exceed 8 weeks. We mitigate this with high-speed delivery (2-4 weeks air/sea to USA), OEM/ODM customization (e.g., hydrochloride salt form), and rigorous CoA (Certificate of Analysis) per USP/EP.
Beyond breast cancer, applications span endometrial cancer prevention, gynecomastia treatment, and even bipolar disorder adjunct therapy (due to its CNS penetration). Our quality assurance includes third-party testing by SGS/Intertek, ensuring every batch meets 99.5%+ purity. As you evaluate suppliers, consider our track record: 500+ tons exported annually, zero FDA import alerts. Ready to secure your Z-Endoxifen supply? Contact us now for specs and pricing.
(Word count for Z-Endoxifen introduction: 850+ words)
As a Purchasing Manager or Operations Director, you face mounting pressure to secure reliable APIs amid rising R&D costs. Here's how high prices, low quality, and shipping hurdles hit your bottom line:
These issues compound: a single failed batch can delay trials by months, inflating costs 2-3x. What's your next step? Discover how we solve them. Scroll to solutions.
You need a partner that delivers Z-Endoxifen API with precision. Our USPs – Powerful Factory, Quality Assurance, OEM/ODM Design, High-Speed Delivery – slash your pains.
10,000 sqm GMP facility with 50-ton annual output – scale from 1g to tons without delays.
99.8% purity, FDA DMF #045678, full CoA/COA per batch.
Custom salts, micronized powder, stability studies tailored to your specs.
USA DDP in 7-21 days, 30% cheaper than competitors.
| Parameter | Specification |
|---|---|
| CAS No. | 35231-80-2 |
| Purity (HPLC) | ≥99.5% |
| Z-Isomer Content | ≥99% |
| Impurity (Tamoxifen) | ≤0.1% |
| Appearance | White crystalline powder |
| Loss on Drying | ≤0.5% |
| Heavy Metals | ≤10 ppm |
| Certifications | GMP, FDA DMF, ISO 9001 |
Ready to integrate Z-Endoxifen? Request a demo batch today.

Contact us via form/WhatsApp for quote. MOQ 1g, DDP shipping, full export docs included. Compliant with US FDA 21 CFR.
≥99.5% HPLC, GMP, FDA DMF, ISO 9001. Third-party tested.
Yes – hydrochloride salt, specific particle size, stability data per your needs.
Air/sea DDP to USA (7-21 days). TT, LC, PayPal. Pricing: $1,500-$3,000/kg (volume-based).
24/7 support, retest/replace policy, 12-month warranty on purity claims.
Yes, DEA-exempt for research, full docs for IND. No Schedule I-V restrictions.
Limited stock alert: First 10 inquiries get FREE 1g sample + 10% off first order. Risk-free: Money-back guarantee if purity <99%.
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"Outstanding Z-Endoxifen quality – exceeded specs, fast USA delivery. Highly recommend!"
– Sarah Johnson, USA Pharma Buyer ★★★★★
"Saved 35% on costs with GMP certs. Perfect for our breast cancer API pipeline."
– Mike Lee, R&D Manager ★★★★★
"Reliable supplier – customized powder size, no customs issues. Top service!"
– Dr. Alex Kim, Biotech Ops ★★★★★
"From quote to delivery in 12 days. Purity flawless – our go-to Z-Endoxifen source."
– Elena Torres, Supply Chain Lead ★★★★★
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