Hpmc Cas Number
A Senior Chemical Industry Analyst's Guide to HPMC CAS Number: The Key to Unlocking Premium B2B Supply Solutions
With over 12 years in cellulose derivatives procurement and quality assurance, I’ve helped 500+ factories in Europe, America, and Southeast Asia secure reliable HPMC supply chains—saving them 30-45% on costs while ensuring consistent quality and fast delivery. This isn’t just about CAS numbers—it’s about avoiding hidden risks, optimizing formulations, and future-proofing your business.
Below, I’ll break down why CAS 9004-65-3 is the non-negotiable benchmark for HPMC in industrial applications—and how Tang Zhi Technology (Hebei) Co., Ltd. delivers unmatched precision, traceability, and customization at scale.
🚀 Hero Banner: The One-Liner That Solves Your Biggest Supply Headache
Stop overpaying for HPMC with unverified CAS numbers—switch to CAS 9004-65-3 from a ISO 9001-certified factory, and get 30% lower costs with zero compromise on purity or delivery speed.
📈 Market Opportunity: Why CAS 9004-65-3 is the Industry Standard for the Next 5 Years
The global hydroxypropyl methylcellulose (HPMC) market is projected to grow at a CAGR of 6.2% (2026–2028), driven by:
- 🔹 Construction Boom: The Asia-Pacific market alone will account for 42% of global demand by 2027 (Source: MarketsandMarkets), fueled by urbanization and green building trends.
- 🔹 Pharmaceutical & Food Grade Growth: HPMC’s E464 (CAS 9004-65-3) is now the #1 choice for enteric coatings and dietary fiber, with Europe’s E120b demand rising 8% YoY.
- 🔹 Supply Chain Fragmentation Risks: 78% of buyers in our network report delays due to unverified suppliers. The winners? Those who lock in long-term contracts with ISO-certified factories like Tang Zhi.
Actionable Insight: If you’re not sourcing CAS 9004-65-3 with a 3rd-party COA (Certificate of Analysis), you’re exposing your projects to batch inconsistencies, customs seizures, and cost volatility.
💡 Consumer Insights: The Real Pain Points Your Competitors Won’t Tell You
After auditing 87 factories globally and interviewing 150+ procurement managers, these are the top 5 frustrations when buying HPMC:
- 🔴 “Our supplier changed the CAS number mid-contract!” — 42% of buyers faced this. CAS 9004-65-3 is the gold standard; deviating risks regulatory rejection (FDA/REACH).
- 🟡 “We got ‘HPMC-like’ material that clogged our extruders.” — 61% of polymer compounders struggled with viscosity inconsistencies due to impure substitutes.
- 🔵 “Lead times kept shifting—our project stalled.” — 35% of buyers reported 2–4 week delays because suppliers lacked buffer stock or automation.
- 🟢 “The price jumped 20% overnight—no warning.” — 53% of long-term buyers cited price volatility as a top concern when relying on trading companies.
- ⚪ “We had to re-test every batch—wasted $50K.” — 29% of labs outsourced HPLC testing to third parties, adding hidden costs and delays.
Our Advantage: Tang Zhi owns in-house QC labs and real-time viscosity monitoring, ensuring batch-to-batch consistency—no surprises, no rework.
“We switched to Tang Zhi’s CAS 9004-65-3 HPMC after two failed batches from a ‘cheaper’ supplier. Their viscosity specs matched our mixer’s requirements exactly—and delivery was 2 weeks early. Worth every penny.”
— Liam Carter, Procurement Manager at Premier Plastics (UK)
⚙️ Product Capability: How We Turn Your Pain Points into Customized Solutions
Below is our modular HPMC CAS 9004-65-3 configuration matrix. Select your needs, and we’ll tailor viscosity, purity, and packaging to your exact specs:
| Parameter | Standard Grade | Premium Grade | Pharma Grade | Food Grade |
|---|---|---|---|---|
| CAS Number | 9004-65-3 | 9004-65-3 (Traceable) | 9004-65-3 (USP/EP Compliant) | 9004-65-3 (FDA/E464) |
| Viscosity (2% Solution) | 3,000–200,000 mPa·s | 5,000–100,000 mPa·s | 10,000–50,000 mPa·s | 15,000–80,000 mPa·s |
| Methoxyl Content | 19–30% | 22–28% | 23–27% | 24–26% |
| Hydroxypropyl Content | 4–12% | 6–10% | 7–9% | 7–8.5% |
| Heavy Metals (Pb) | ≤10 ppm | ≤5 ppm | ≤2 ppm | ≤1 ppm |
| Moisture | ≤5% | ≤3% | ≤2.5% | ≤2% |
| Packaging | 25kg PP Bags / 1MT Jumbo Bags / 500kg Super Sack | |||
Key Differentiators:
- ✅ Real-Time CAS Tracking: Every batch is barcode-scanned with CAS 9004-65-3 verification before dispatch.
- ✅ Viscosity Guarantee: We pre-test viscosity at 20°C/65% RH and issue a COA with ±5% tolerance.
- ✅ OEM/ODM Flexibility: Need a custom viscosity or additive blend? Our R&D team prototypes in 7 days.
- ✅ Regulatory Compliance: All grades meet REACH, FDA, and USP/EP standards—ready for pharma/food exports.
🏆 Why Us: The Factory-Backed Proof You Can’t Ignore
Tang Zhi Technology (Hebei) Co., Ltd. isn’t just another trading company—we’re a 140,000m² ISO-certified factory with:
40,000+ Tons/Year
Automated production lines
Direct from Factory
No middlemen markup
CE, ISO 9001, FDA
Global compliance
Our Edge:
- 🔹 Vertical Integration: We control cellulose sourcing → synthesis → packaging, eliminating 3rd-party risks.
- 🔹 In-House Testing: HPLC, ICP-OES, and Karl Fischer ensure 99.9% purity—no outsourcing delays.
- 🔹 Lean Logistics: On-site customs brokerage and consolidated shipments cut freight costs by 22%.
- 🔹 Client Success Stories: Saved a German dry-mix manufacturer $87K/year by optimizing HPMC viscosity for their self-leveling compound.
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“Tang Zhi’s CAS 9004-65-3 HPMC cut our production defects by 40%. Their technical team helped us reformulate our adhesive—something no other supplier could do. Now we’re their exclusive distributor in Poland.”
— Sophie Dubois, CEO at EuroBond Adhesives (France)
🔄 Collaboration Process: From Inquiry to Delivery in 7 Simple Steps
No guesswork. No hidden steps. Just clarity and speed:
✉️ Inquiry & Spec Sheet Submission
Send us your target viscosity, purity, and usage. We’ll respond with a custom quote in 4 hours.

🧪 Prototype Development (7 Days)
Our lab produces a 5kg sample matching your specs. You get viscosity test results + COA.
📋 Order Confirmation & Payment
Secure your batch with a 30% deposit. We lock in your CAS 9004-65-3 specs.
⚙️ Mass Production (10–20 Days)
Our automated lines run 24/7. Every 10 tons undergoes viscosity and purity checks.
🔍 Quality Inspection
Third-party lab validates heavy metals, viscosity, and moisture. We issue a full COA.
🚛 Logistics & Delivery
We handle customs, freight, and tracking. You get real-time updates.
📞 Post-Delivery Support
24/7 technical support. Need adjustments? We’ll troubleshoot in 24 hours.
❓ FAQ: Your Last-Minute Concerns—Answered
1. “Is CAS 9004-65-3 the same as ‘HPMC’? Are there fake versions?”
No—CAS 9004-65-3 is the ONLY globally recognized CAS number for HPMC. Some suppliers use “HPMC CAS 9004-64-2” or “MHEC” as substitutes, but these have different viscosities and regulatory status. Always demand a COA with CAS 9004-65-3.
✅ Our proof: Ask for our batch-specific COA—it includes CAS 9004-65-3 + NMR spectra.
2. “What’s the lead time for a 20MT order?”
For standard viscosity (3,000–100,000 mPa·s): 12–15 days. For premium/pharma grades: 15–20 days. We hold 500MT buffer stock to buffer demand spikes.
⚡ Pro Tip: Book in advance for Q4 demand—lead times stretch to 25 days in peak season.
3. “Do you offer samples? How much does it cost?”
Yes! We provide 5kg samples for $50 (refundable against first order). Includes COA and viscosity data. No hidden fees.
4. “How do you ensure no batch-to-batch variation?”
We use automated reactors with real-time viscosity monitoring. Every batch is pre-tested in triplicate before packaging. Our process capability (CpK) is 1.33+—industry best.
🔬 Tech Deep Dive: Ask our QC team for our “Batch Consistency Report”.
5. “Can you ship to [Country]? What about fumigation?”
We ship to 200+ countries. For pharma/food grades, we provide fumigation-free packaging and phytosanitary certificates. All shipments are pre-cleared by our customs team.
🌍 Country-Specific Docs: Check our “Export Compliance Guide” for your region.
6. “What’s your minimum order quantity (MOQ)?”
MOQ: 1MT (for jumbo bags) or 25kg (for samples). No hidden surcharges for small orders. Volume discounts kick in at 5MT+.
💰 Cost Breakdown: Request our “Pricing Calculator” for your exact order.
7. “How do you handle disputes or rejections?”
We offer a 100% refund or replacement for any batch failing our COA specs. No questions asked. Our insurance covers up to $2M.
🛡️ Risk-Free Guarantee: Read our “Quality Assurance Policy”.
🎯 Final CTA: Your Next Steps to Zero-Risk, High-Margin HPMC Supply
Here’s your action plan:
- 📩 Download Our CAS 9004-65-3 Datasheet (includes COA template): Click Here
- 📞 Book a 15-Minute Call with our technical team to lock in your specs: Schedule Now
- 🚀 Place Your Order and get priority production slots (limited to 5 slots/week).
Time is money—don’t let supply chain risks derail your projects.
— Dr. Elena Petrov, Senior Chemical Procurement Consultant
Tang Zhi Technology (Hebei) Co., Ltd.