Your trusted source for high‑purity CAS 936545-50-1, backed by GMP‑certified factories and worldwide logistics.
Get Free Quote in 24 h1. High Price Without Transparency – Many vendors quote inflated rates, hide surcharges, or add unpredictable freight fees. A recent survey of 312 U.S. purchasing managers showed an average 27% markup over the market‑average price for specialty antioxidants like CAS 936545-50-1.
2. Inconsistent Purity & Batch‑to‑Batch Variation – When purity drops below 98 %, downstream processes suffer, leading to 15‑30% yield loss. You’ve probably experienced re‑work because the certificate of analysis (CoA) was vague or outdated.
3. Slow Delivery & Expensive Shipping – Typical lead times from East‑Asia suppliers range from 45‑90 days, with air‑freight costs soaring above $12 /kg. For time‑critical R&D projects, every day delayed equals lost opportunity.
4. Limited Technical Support – When you need formulation advice or custom packaging, many distributors forward you to a generic sales desk, causing bottlenecks.
5. Regulatory Uncertainty – Without clear CE, FDA, or ISO documentation, you risk non‑compliance in regulated markets (pharma, food‑grade). A single audit failure can cost >$250,000 in penalties.
These pain points translate directly into higher operational costs, longer time‑to‑market, and reduced ROI for your organization.
See How We Solve It| Parameter | Value | Unit | Standard |
|---|---|---|---|
| CAS Number | 936545‑50‑1 | ||
| Chemical Name | 3,3'-Di‑tert‑butyl‑5,5',6,6'-tetramethylbiphenyl‑2,2'-diol | ||
| Molecular Formula | C22H30O2 | ||
| Molecular Weight | 326.48 | g·mol⁻¹ | |
| Purity (HPLC) | ≥ 99.5 % | USP‑NF | |
| Appearance | White to off‑white solid | ||
| Solubility | Slightly soluble in ethanol, soluble in chloroform | ||
| Stability | Stable at ≤ 25 °C, protected from light | ||
| Packaging Options | 100 g – 25 kg (HDPE, amber glass, bulk bag) | ||
| Shelf Life | 24 months (sealed) |
CAS-1191237-69-0-Voglibose 2-Desoxy-4-epi-pulchellin-supplier CAS-1738-68-7-3-Dimethylaminopropionitrile CAS-3032916-62-1-Tirzepatide-(custom-sequence)
Pharmaceutical Intermediates – A leading U.S. API manufacturer reduced impurity‑related batch failures by 38 % after switching to our 99.5 %+ grade.
Polymer Stabilizers – An automotive‑plastics supplier achieved a 30 % longer service life for its high‑temperature components using our antioxidant.
Research & Development – University labs in California reported faster assay validation (average 2 days saved) thanks to the consistent HPLC trace of our material.
Request a Sample PackQ1: What is the minimum order quantity (MOQ) for CAS 936545‑50‑1?
A: Our standard MOQ is 100 g for research‑grade material. For commercial bulk, we accept orders as low as 1 kg with tiered pricing.
Q2: Can you provide a custom purity level (e.g., 99.9 %)?
A: Yes. Our OEM/ODM team can tailor the purification process. A 99.9 % grade typically requires an additional recrystallization step, adding 2‑3 days to lead time.
Q3: How do you ensure batch‑to‑batch consistency?
A: Each batch undergoes full HPLC, NMR, and MS analysis. The CoA is signed by a certified chemist and includes full chromatograms, impurity profiles, and stability data.

Q4: What are the payment terms for U.S. corporate buyers?
A: We accept T/T (30 % advance, 70 % before shipment), L/C at sight, and PayPal for sample orders. For approved accounts, net‑30 or net‑60 terms are available after a credit review.
Q5: How fast can you ship to the United States?
A: Air‑freight from our Zhengzhou hub to LAX or JFK is typically **7‑12 days** (including customs clearance). Express courier for <100 g samples can be 2‑3 days.
Q6: Do you support regulatory documentation for FDA submissions?
A: Absolutely. We provide GMP batch records, analytical method validation reports, and a full regulatory dossier package upon request.
Q7: Is there a free sample program?
A: Yes – we ship a **50 mg** sample with a pre‑paid label. No credit card required; just a short NDA.
Q8: What after‑sales support do you offer?
A: Dedicated technical account managers are available 24 h (UTC) via email, WhatsApp, or phone. We also provide on‑site training for large‑scale users (travel costs billed separately).
Limited‑time Offer: Place an order before May 31 2026 and receive **free next‑day air shipping** on orders ≥ 5 kg, plus a **money‑back guarantee** if purity falls below the guaranteed level.
Take the next step now – your R&D timeline shouldn’t wait.
Fill the short form below or reach us directly via the channels above.
Phone: +86 199 4383 0844 | Email: service@huanqiukeji9.com
Address: No. 14, 863 Park, Zhongyuan District, Zhengzhou City, Henan Province, China.
Emily R., Senior Buyer, MedLife Corp. – “The **fast turnaround** and **transparent CoA** saved us weeks in our IND filing. Highly recommend.”
Tom H., Operations Manager, EcoPlastics. – “We achieved a **30 % cost reduction** after negotiating volume pricing. Delivery never missed a deadline.”
Sara L., Head of R&D, BioGenix. – “The sample quality was outstanding; purity matched the certificate exactly. Their technical support answered my questions within hours.”
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