| HS Code | 890890 |
| Product Name | Alginate/Sodium alginate/Alginic acid Pharma Grade API |
| Api Type | Pharmaceutical grade alginate, sodium alginate, and alginic acid |
| Common Names | Sodium alginate, Alginic acid, Alginate |
| Synonyms | Sodium alginate, Alginic acid sodium salt, Algin, Kelp alginate, Sodium polymannuronate |
| Chemical Name | Sodium alginate: Sodium salt of alginic acid; Alginic acid: Poly(mannuronic acid-co-guluronic acid) |
| Cas Number | Sodium alginate: 9005-38-3; Alginic acid: 9005-32-7 |
| Molecular Formula | Sodium alginate: (C6H7NaO6)n; Alginic acid: (C6H8O6)n |
| Molecular Weight | Variable depending on degree of polymerization; typically 10,000 to 600,000 Da |
| Appearance | White to pale yellow or light brown powder, granules, or fibrous solid |
| Odor | Odorless to slight characteristic odor |
| Taste | Tasteless to slightly salty |
| Solubility | Sodium alginate soluble in water forming viscous colloidal solution; alginic acid practically insoluble in water but soluble in alkaline solutions; both insoluble in ethanol, ether, and chloroform |
| Ph | Sodium alginate 1% w/v aqueous solution typically 6.0 to 8.0; alginic acid dispersion acidic |
| Viscosity | Varies by grade and concentration; typical 1% w/v sodium alginate solution at 20°C is 20 to 2,000 mPa·s or higher |
| Assay Purity | Typically 90.0% to 105.0% on dried basis according to pharmacopoeial monograph |
| Sterility | Injectable grade sterile; oral, tablet, capsule, and granule grades non-sterile |
| Particle Size | Available as fine powder, granular, or sieved grades; typical 45 to 150 µm or as specified |
| Bulk Density | Typical 0.3 to 0.8 g/cm³ depending on grade and particle size |
| Tapped Density | Typical 0.4 to 1.0 g/cm³ depending on grade |
| Flowability | Poor to moderate for fine powders; improved in granular grades |
| Compressibility | Good binding and gelling properties; used as binder and disintegrant in tablets and capsules |
| Grade | Pharma Grade; Oral Grade; Injectable Grade; sterile and pyrogen-free grade available |
| Pharmacopoeia Compliance | Complies with USP/NF, EP, BP, JP, or ChP monographs as applicable |
| Application | Tablet binder, capsule excipient, granule binder, controlled-release matrix, hydrogel, wound dressing, drug delivery vehicle, injectable hydrogel component |
| Dosage Forms | Tablet, Capsule, Granule, Injection |
| Route Of Administration | Oral, Injectable |
| Packaging | Fiber drum with PE bag inside, 25 kg net; injectable grade in sterile containers or aseptic bags |
| Storage Conditions | Store in a cool, dry, well-ventilated place protected from moisture and light; keep containers tightly closed |
| Shelf Life | Typically 24 to 36 months when stored properly in unopened containers |
| Regulatory Status | Pharmaceutical API/excipient manufactured under GMP; DMF/CEP may be available depending on supplier |
| Origin Source | Derived from brown algae such as Laminaria, Macrocystis, and Ascophyllum, or bacterial biosynthesis |
| Residual Solvents | Controlled according to ICH Q3C; commonly below limits |
| Elemental Impurities | Controlled according to ICH Q3D or pharmacopoeial requirements |
| Bioburden | Oral grade typically low; injectable grade controlled and monitored |
| Pyrogenicity | Injectable grade pyrogen-free or non-pyrogenic as specified |
| Injection Suitability | Injectable grade is sterile, pyrogen-free, low-endotoxin, and suitable for parenteral formulations |
| Oral Suitability | Oral grade is suitable for solid and liquid oral dosage forms |
| Viscosity Grade | Low, medium, and high viscosity grades available; e.g., 20 to 200 mPa·s, 200 to 800 mPa·s, 800 to 2,000 mPa·s or higher |
| Gelling Agent | Forms gels in presence of calcium ions or under acidic conditions |
| Film Formation | Forms films and fibers; used in wound dressings and sustained-release coatings |
| Biocompatibility | Generally biocompatible and biodegradable; suitable for pharmaceutical and biomedical applications |
| Ph Stability | Sodium alginate stable over pH 5 to 10; may precipitate at low pH |
| Thermal Stability | Stable at room temperature; avoid excessive heat during processing |
| Chemical Stability | Stable under normal storage; may degrade under strong oxidizing conditions |
| Compatibility | Compatible with many excipients; may interact with cationic drugs, calcium salts, and polycations |
| Solubility In Organic Solvents | Insoluble in ethanol, acetone, ether, and chloroform |
| Water Solubility | Sodium alginate freely soluble in water; alginic acid practically insoluble in water |
| Salt Formation | Sodium alginate is the sodium salt; alginic acid is the free acid form |
| Degree Of Polymerization | Variable; determines viscosity and molecular weight |
| M G Ratio | Ratio of mannuronic acid to guluronic acid varies by source and affects gel strength and properties |
| Calcium Content | Low unless calcium alginate grade; affects gelling |
| Antimicrobial Preservative | None typically added; preservative-free unless specified |
| Antioxidant | None typically added; may be stabilized with antioxidants if required |
| Color | White to off-white or pale yellow |
| Form | Powder, granule, or fibrous |
| Angle Of Repose | Typically 30 to 50 degrees depending on grade |
| Moisture Sorption | Hygroscopic; absorbs moisture from air |
| Viscosity Stability | Viscosity may decrease upon prolonged storage or heating |
| Sterilization Method | Injectable grade may be sterilized by aseptic processing or filtration; terminal sterilization may affect viscosity |
| Sterility Assurance Level | SAL 10^-6 for sterile injectable grade |
| Pyrogen Limit | Passes pyrogen test as per pharmacopoeia for injectable grade |
As an accredited Alginate/Sodium alginate/Alginic acid Pharma Grade API for Tablet / Capsule / Granule / Injection, Oral & Injectable factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Competitive Alginate/Sodium alginate/Alginic acid Pharma Grade API for Tablet / Capsule / Granule / Injection, Oral & Injectable prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
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