KL-550L - Purified Low Mw Acetylated softwood kraft lignin
KL-400N - Purified non-fractionated Oxypropylated softwood kraft lignin
KL-450L - Purified Low Mw Allylated softwood kraft lignin
KL-550H - Purified High Mw Acetylated softwood kraft lignin
KL-350N - Purified non-fractionated methylated softwood kraft lignin
