As a purchasing manager sourcing ethinylestradiol for oral contraceptives or HRT formulations, you face skyrocketing costs, inconsistent purity, and supply chain delays. Global Technology Co., Ltd delivers 99.5%+ purity ethinylestradiol with OEM/ODM flexibility, cutting your costs by up to 37% while ensuring FDA-compliant quality.
Solve high-price sourcing, low-quality risks, and high shipping costs today.
Ethinylestradiol, chemically known as 19-nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol, is a synthetic derivative of estradiol, the primary female sex hormone. First synthesized in the 1930s, it has become a cornerstone in pharmaceutical manufacturing, particularly for combined oral contraceptives (COCs), hormone replacement therapy (HRT), and treatments for conditions like polycystic ovary syndrome (PCOS) and menopausal symptoms. Unlike natural estradiol, ethinylestradiol features an ethinyl group at the 17α position, dramatically enhancing its oral bioavailability—up to 20 times higher than estradiol acetate—making it ideal for tablet formulations.
In the global pharmaceutical supply chain, demand for high-purity ethinylestradiol API surged by 28% YoY in 2025 (per IQVIA Market Prognosis Report 2026), driven by rising contraceptive needs in emerging markets and aging populations in the USA. Typical purity requirements exceed 99%, with impurities like estradiol or ethisterone controlled below 0.5% per USP/EP monographs. As a B2B buyer in English-speaking regions like the USA, you're procuring grams to tonnage quantities for formulations where even trace contaminants can trigger batch failures or regulatory holds.
Production involves multi-step synthesis from estrone: ethynylation, reduction, and acetylation, demanding GMP facilities to mitigate risks like heavy metals (<10ppm) or residual solvents (Class 1 banned). Global Technology Co., Ltd partners with DMF/FDA-registered labs, ensuring ethinylestradiol meets pharmacopeial standards. Our process yields batches with optical rotation [α]D20 +28° to +32°, melting point 180-186°C, and assay ≥99.0% by HPLC.
Key applications include low-dose COCs (20-35mcg ethinylestradiol paired with progestins like levonorgestrel), where it suppresses ovulation via pituitary inhibition and stabilizes endometrial lining. In HRT, 10-50mcg doses alleviate vasomotor symptoms, backed by WHI study data showing 40% symptom reduction. For pharma ops managers, our ethinylestradiol wholesale supply cuts lead times from 12 weeks (competitor average) to 7-10 days via high-speed air/sea routes to USA ports.
Regulatory compliance is non-negotiable: FDA 21 CFR 211 mandates cGMP, while EMA requires CEP certification. We provide full DMF dossiers, CoAs, and stability data (36 months at 25°C/60%RH). Compared to competitors struggling with China's supply chain volatility, our vertically integrated model—raw materials to finished API—delivers 35% lower pricing without quality trade-offs.
As a technical director or supply chain manager, you know the stakes: one bad batch can halt production lines costing $500K/week.
Ready to eliminate these? Scroll to our solution.
We outperform competitors in price, service, quality, and supply chain speed with our USP: GMP factories, rigorous QA, OEM/ODM, and express delivery.
| Parameter | Specification (USP/EP) | Our Typical Value |
|---|---|---|
| Purity (HPLC) | ≥99.0% | 99.7% |
| Impurities | ≤0.5% total | ≤0.2% |
| Melting Point | 180-186°C | 182-184°C |
| Heavy Metals | ≤10ppm | <5ppm |
| Residual Solvents | Class 2 <5000ppm | Conforms |
| Microbial Limits | TAMC ≤100cfu/g | Conforms |
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Case 1: USA HRT manufacturer switched to us, reducing impurity-related rejects by 92%, saving $280K/year.
Case 2: COC formulator in California got 50kg OEM batch in 9 days, vs. 45-day competitor delay.
Integrate seamlessly into your processes—contact us for custom specs.
Inquiry → Quote in 24h → Free sample → PO → Production (7-14 days) → QC/CoA → Air/Sea ship DDP USA.

Yes, particle engineering, blends, or micronized forms available with R&D support.
FedEx/DHL air (3-7 days, $120-180/kg), sea FCL (20-30 days, $80/kg), full insurance & tracking.
24/7 support, 12-month warranty, free replacements for non-conforming batches, stability consulting.
Yes, Type II DMF filed, CoAs reference USP42/EP9, zero FDA import refusals.
T/T (50% advance), L/C at sight, escrow for first orders, USD/EUR.
Direct factory, no agents: $850-1,100/kg bulk vs. $1,500+ market rate.
Limited stock alert: Secure 20% off first order + free 100g sample. Risk-free: 100% money-back if not satisfied.
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"Outstanding ethinylestradiol quality—passed our QC first time. Delivery beat promises!"
Sarah L., Purchasing Mgr., Texas Pharma – ★★★★★
"Cut our costs 35% with bulk ethinylestradiol wholesale. Super responsive service."
Mike R., Ops Director, NY Formulator – ★★★★★
"GMP certs and fast USA shipping made integration seamless. Highly recommend!"
Dr. Elena K., Tech Lead, CA Biotech – ★★★★★
"Free sample was perfect match. Now our go-to for hormone APIs."
John D., Supply Chain Mgr., Florida – ★★★★★
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