Lignin (Alkaline) TCI L0082

Chemical Identity

CAS No.: 8061-51-6
PubChem: CID 175586·SID 87572045
Formula: C18H13N3Na2O8S2
Molecular weight: 509.4 g/mol

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: disodium;4-acetamido-5-hydroxy-6-phenyldiazenylnaphthalene-1,7-disulfonate
SMILES: CC(=O)NC1=C2C(=C(C=C1)S(=O)(=O)[O-])C=C(C(=C2O)N=NC3=CC=CC=C3)S(=O)(=O)[O-].[Na+].[Na+]
InChIKey: RLLNZXVKBYGKIP-UHFFFAOYSA-L

Rp 505.050,00

~~Rp 352.800,00~~ Rp 505.050,00

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Berat 25g 500g

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TCI L0082 Lignin (Alkaline) is a complex aromatic biopolymer obtained from wood through an alkaline process, which separates lignin from cellulose and hemicellulose. In plants, lignin is a structural part of the cell wall and gives woody tissue its rigidity and resistance. In the laboratory, alkaline lignin serves as a model material for studying lignin structure and reactivity. It is also used as a feedstock in renewable materials research and as a substrate in biomass bioconversion studies. These uses make it an important material for research that aims to turn waste from the wood and pulp industries into valuable products.

Researchers choose lignin for its structure, which is rich in phenylpropane units joined by various ether and carbon-carbon linkages. This structure provides many phenolic and aliphatic hydroxyl groups that can be chemically modified, so lignin is a versatile starting point for functionalisation, grafting and crosslinking studies. Lignin from the alkaline process is generally a brown powder that dissolves in basic solutions, which makes it easy to handle in water-based reactions. As a natural polymer, lignin is renewable and could replace part of the petroleum-based feedstocks used today, which supports work on more sustainable chemistry and materials.

In Indonesian laboratories, alkaline lignin is commonly used in university chemistry, chemical engineering and forestry departments, as well as in research institutes that study biomass use. Groups working on renewable polymers, biorefinery concepts and bioconversion use it as a reference or starting material. Its link to wood and pulp processing makes it relevant to research on adding value to industrial residues, and it supports teaching, thesis projects and applied research on sustainable materials.

Related TCI products

Lignin structure and reactivity studies: alkaline lignin acts as a model material, so researchers can examine its phenylpropane units, ether linkages and hydroxyl groups under controlled conditions.
Renewable polymer and materials research: its many modifiable phenolic and aliphatic hydroxyl groups make it a useful feedstock for developing bio-based polymers, blends and functional materials.
Biomass bioconversion research: it is a relevant substrate for studying how lignin is broken down or converted, supporting work on turning wood and pulp industry residues into valuable products.
Chemical modification and functionalisation experiments: its reactive hydroxyl groups and solubility in basic solutions suit water-based reactions that introduce new functional groups onto the lignin backbone.
Petroleum-replacement and sustainability studies: as a renewable natural polymer, lignin is used to test whether part of petroleum-based raw materials can be replaced in formulations and synthesis routes.

Brand	TCI (product code L0082)
CAS number	8061-51-6
Molecular formula	—
Purity	—
Category	Materials Science > Polymer/Macromolecule Reagents > Polymers
Pack sizes	see the pack size options listed on this product page
Physical form	generally a brown powder, soluble in alkaline solutions
Storage	keep tightly closed in a cool, dry place; follow the manufacturer's label and SDS

Store Lignin (Alkaline) in its original, tightly sealed container in a cool, dry and well-ventilated area, away from direct sunlight, heat and moisture. Because it is a powder, reseal the container promptly after use so it does not absorb moisture or become contaminated. Wear standard laboratory protective equipment, including gloves, safety glasses and a lab coat. Avoid creating or breathing in dust, and weigh the material in a fume hood or a well-ventilated area. Take care when preparing alkaline solutions, as basic media need their own precautions. Always read the manufacturer's safety data sheet before use, and dispose of waste according to local regulations.

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