A 95% Policosanol offer and a 90% Octacosanol offer may look easy to rank. They are not the same measurement. Policosanol names a mixture of long-chain primary alcohols; Octacosanol is a specific C28 alcohol. Before comparing two percentages, an ingredient buyer needs to know what was measured, how it was measured, and what counted as 100%.
Policosanol is a family of long-chain primary fatty alcohols, typically discussed through the combined assay and the relative profile of its members. The Sifeng Bio homepage lists 95%, 98% and 99% grades for SF-001. These catalogue figures do not disclose the individual C28 share or precise assay basis; confirm both against the current offer and batch COA.
Octacosanol (CAS 557-61-9) is the individual 28-carbon primary alcohol, also called 1-octacosanol. Sifeng Bio lists SF-002 grades of 10%, 12%, 40%, 50%, 60% and 90%; its product page separately describes a GC purity range and a total-alcohol indicator. Those lines answer different analytical questions.
The key distinction is between how much of the defined alcohol mixture is in the material and how much of the material is the C28 molecule. A third figure, the share of a C28 peak among identified alcohol peaks, describes the mixture's profile. These values can differ without any laboratory error.
| Reported line | Question it may answer | Clarify before comparing offers |
|---|---|---|
| Total defined alcohols | How much of the sample is the specified alcohol set? | Included chain lengths, mass basis, calibration and exclusions. |
| Octacosanol assay | How much of the sample is C28 alcohol? | Identity standard, GC method and whether the result is mass% or area%. |
| Homolog distribution | How is C28 distributed relative to C24, C26, C30 and other measured alcohols? | Which peaks form the 100% reference and how unknowns are handled. |
For example, a label saying “90% Octacosanol” should not be silently read as “90% total alcohols,” or as “90% of the Policosanol mixture.” Likewise, a “95% Policosanol” listing does not disclose its C28 share. The test report must define the analyte and basis. A GC peak-area percentage also should not automatically be treated as weight percentage without a suitable quantitative method and calibration.
Published analytical work on rice-bran-wax Policosanol used GC–MS for constituent identification and GC–FID with an internal standard for quantification. That is a useful illustration of why a chromatogram, calibration approach and defined sum can add meaning that a headline percentage lacks. It does not identify the method Sifeng Bio uses for any particular lot.
Define the target alcohol profile before screening Policosanol lots. A stated total alone does not describe the full mixture.
When the target is C28, compare Octacosanol assay with particle properties, processing conditions and performance in the actual formulation.
Align a written specification, sampling plan, analytical method and destination-market documentation before moving from samples to recurring orders.
No ingredient purity percentage, by itself, proves a finished product's efficacy, safety, regulatory status or suitability for a health claim. Those questions require separate evidence and market-specific review.
The Sifeng Bio homepage lists a 95% SF-001 Policosanol grade, but that label alone does not define the precise alcohol set, assay basis or C28 share. Request the current SF-001 Policosanol specification and batch COA.
No such equivalence should be assumed. The SF-002 Octacosanol product page presents Octacosanol purity and total alcohol content as separate indicators; confirm the method and calculation basis on the relevant SF-002 Octacosanol COA.
A 95% Policosanol listing and a 90% Octacosanol listing may describe different analytes. Compare Policosanol total-alcohol definitions and homolog profiles with Octacosanol's C28 assay only after both specifications define the percentage basis.
Octacosanol is a C28 primary alcohol that may appear as one constituent in a Policosanol mixture. A GC profile can separate Octacosanol from other measured Policosanol alcohols, subject to the validated method and identification standards.
For SF-001 Policosanol and SF-002 Octacosanol, request the current specification, a batch COA, assay method description, identity or homolog data, relevant contaminant limits and documentation needed for the destination market.
Higher Octacosanol assay does not establish that Octacosanol is better than Policosanol for every formulation. The desired molecule or mixture, delivery system, quality requirements and actual application tests should determine the choice.
Tell HUZHOU SIFENG BIOCHEM CO., LTD which grade, assay definition, intended application, destination market and expected volume you are evaluating. Ask for the current SF-001 Policosanol or SF-002 Octacosanol documentation before making a purchasing decision.
Email: sales@sifengbio.com | Tel: +86-572-2576818 | Website: www.sifengbio.com
Author statement: Prepared by HUZHOU SIFENG BIOCHEM CO., LTD for ingredient-industry communication. Company-grade references come from its public website; analytical context comes from the cited research and chemical database. The article is educational and does not claim that either ingredient treats disease or that a listed purity figure guarantees a finished-product result. Confirm current specifications, batch documents and local requirements before use.
Topics: #Policosanol #Octacosanol #FattyAlcohols #IngredientQuality #GCFID #CertificateOfAnalysis #NutraceuticalIngredients #B2BSourcing
