L-HPC LP21

Meskacel™ L-HPC LP21 power is a high-quality pharmaceutical excipient, widely used in the production of tablets and capsules, mainly as a disintegrant and binder. It has a highly efficient disintegration performance. The surface of the crystal particles is rough. It has a structure similar to weathered rock, which can rapidly absorb moisture, causing the tablets to expand quickly and disintegrate into uniform powder, thereby increasing the disintegration rate and bioavailability. In addition, it also has excellent adhesion. Its rough structure gives it a strong inlaying effect with drugs and particles, increasing adhesion, enhancing the hardness and gloss of tablets, and improving the moulding effect.

As a nonionic polymer, L-HPC LP21 power has stable chemical properties, is not prone to chemical reactions with drugs, has little impact on the therapeutic effect of drugs, contains no peroxides, and cooperates well with oxygen-sensitive active drug components, ensuring the quality and stability of drugs. Meanwhile, it can be used as a disintegrant or binder in both wet and dry granulation methods and is widely adaptable. Generally, the usage concentration in prescriptions is 5%-25%.

The Performance Specifications of L-HPC LP21

L-HPC LP21

Low-Substituted Ether Of Cellulose (L-HPC)

Main Source of MaterialsCotton and Wood Pulp
CAS NO.9004-64-2
HS Code39129000

Type

Pharmaceutical Excipients

Physical Analysis

AppearanceWhite or off-white fibrous or granular powder
ApplicationsTablet anti-capping agent, tablet dry binder, tablet rapid disintegrator, dispersion aid (for capsule filling)
Formula ModificationSupport
PackingIN FIBER DRUMS WITH INNER P.E. BAGS, NET WEIGHT 25 KG PER DRUM.

Chemical Analysis

Hydroxypropoxy10.0-12.9
Chloride≤0.36
Residue on ignition≤0.5
Loss on drying≤5.0
Residue on ignition≤0.5
Particle Size(μm)40
Particle TypeHighly Fibrous

Method of Application

Direct Compression(Anti-capping)
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Product Characteristics of L-HPC LP21

Highly Efficient Disintegration
L-HPC LP21 rapidly absorbs water and expands by 300%–500%, generating a strong swelling force that accelerates tablet disintegration. With 5% addition, disintegration time can be reduced to within 5 minutes—about 40% more efficient than traditional excipients—thereby enhancing dissolution and bioavailability, especially for poorly soluble drugs.
Strong Binding Performance
As a wet granulation binder, L-HPC LP21 improves particle bonding through physical interlocking and intermolecular forces. At 3%–8% addition, it enhances flowability and compressibility, increases tablet hardness (50–80 N), reduces cracking and friability, and ensures stable tablet quality.
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L-HPC OF PHARMACEUTICAL

LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE

Application Scenarios of L-HPC LP21

Standard tablets play the dual roles of binder and disintegrant simultaneously, ensuring that they are aesthetically pleasing in formation and disintegrate rapidly. For example, in the production of acetaminophen tablets, L-HPC LP21 can optimise the process and enhance product stability. ​

Dispersed tablets: The tablets' rapid disintegration property allows them to be quickly dispersed into uniform particles in water, making them convenient for children and elderly patients to take and improving medication compliance. ​

Sustained-release formulation framework material: Its controllable expansion property (expansion rate 300%-500%), when combined with ethyl cellulose (EC), enables zero-level drug release within 12-24 hours. Experimental data show that the deviation rate of drug release after compatibility is less than 5%.

Optimisation of disintegration of poorly soluble drugs: L-HPC LP21 significantly shortens the dissolution time through the synergistic effect of capillary permeation and dilation. For example, the dissolution rate in metformin tablets increased from 60% (starch system) to 95% (LP21 system).

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Why Choose Meska Chemical's Meskacel™ L-HPC LP21 Power

Why Choose Meska Chemical's Meskacel™ L-HPC LP21 Power

Strict quality control: The production of our pharmaceutical-grade L-HPC LP21 power strictly follows international pharmacopeia standards. We control the source of raw materials, select high-quality cotton lint or wood pulp, and go through multiple purification and modification processes to ensure the purity of the products. The finished product needs to pass 12 strict tests, including hydroxypropyl content (5%-7%), loss on drying (≤5.0%), microbial limit (meeting the requirements of sterile preparations), etc.

Stable product supply: With its large production capacity (38,000 tons per year), it can meet customers' large-scale purchasing demands and ensure timely delivery.

Perfect customized services: Provide customized L-HPC LP21 power products and services. Parameters such as particle size and degree of substitution of the products can be adjusted according to the customer's specific requirements to meet their personalized needs.

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Frequently Asked Questions

1. What are the main differences between LP21 and LP22?

LP21 has a lower degree of substitution (≤21% vs ≤22%) and a higher viscosity (20-40 mPa·s vs 15-30 mPa·s), making it more suitable for high-drug loading tablets and sustained-release skeleton applications.

2. How to store L-HPC LP21 correctly?

When storing L-HPC LP21, pay attention to the following points:

  • Keep dry: Store in a dry environment to prevent moisture damage.
  • Avoid high temperatures and direct sunlight: The recommended storage temperature is below 30℃, and direct sunlight should be avoided.
  • Sealed storage: It is recommended to store in a sealed container to prevent moisture absorption.
  • Validity period: Under the above storage conditions, the validity period of L-HPC LP21 is usually 2 years
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