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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%. Editorial illustration. Raw-material imagery does not identify the feedstock of a particular Sifeng Bio batch. First, name the substance behind the number SF-001 Policosanol 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. SF-002 Octacosanol 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. A percentage is incomplete until its denominator is clear 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. Editorial illustration of analytical testing, not a photograph of Sifeng Bio's facility or its actual COA. Read the COA in a useful order Match the product and batch. Check SF-001 Policosanol or SF-002 Octacosanol, lot number, sampling date and the corresponding specification. Identify each assay line. Distinguish total defined alcohols, C28 content and the distribution of individual alcohols. Read the method note. Ask for GC conditions, reference standards, calculation basis and whether each number is area% or mass%. Review non-assay parameters. Residual solvents, moisture, heavy metals, microbiological limits and packaging can matter for the intended use. Compare more than one lot. A single COA describes one sample; repeatability across lots is a separate procurement question. 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. Choose the grade for the application, not the largest number Ingredient development Define the target alcohol profile before screening Policosanol lots. A stated total alone does not describe the full mixture. Formula evaluation When the target is C28, compare Octacosanol assay with particle properties, processing conditions and performance in the actual formulation. Commercial supply 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. Frequently asked questions What does 95% Policosanol mean for SF-001 Policosanol? 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. Does 90% Octacosanol mean 90% total alcohols in SF-002 Octacosanol? 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. Can 95% Policosanol be directly compared with 90% Octacosanol? 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. How are Policosanol and Octacosanol related in a GC profile? 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. Which documents should a buyer request for SF-001 Policosanol and SF-002 Octacosanol? 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. Does higher Octacosanol purity guarantee a better result than Policosanol? 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. Compare a defined specification, then request a sample. 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 Sources and verification Sifeng Bio English homepage: SF-001 and SF-002 catalogue grades Sifeng Bio: SF-001 Policosanol product page; SF-002 Octacosanol product page Wang et al., Journal of Agricultural and Food Chemistry (2007): extraction methods and chromatographic fingerprint of rice-bran-wax Policosanol NIH PubChem: 1-Octacosanol identity and formula 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 {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://www.sifengbio.com/#organization","name":"HUZHOU SIFENG BIOCHEM CO., LTD","url":"https://www.sifengbio.com/","email":"sales@sifengbio.com","telephone":"+86-572-2576818"},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.sifengbio.com/"},{"@type":"ListItem","position":2,"name":"95% Policosanol vs 90% Octacosanol: What Does the Percentage Actually Measure?"}]},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What does 95% Policosanol mean for SF-001 Policosanol?","acceptedAnswer":{"@type":"Answer","text":"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."}},{"@type":"Question","name":"Does 90% Octacosanol mean 90% total alcohols in SF-002 Octacosanol?","acceptedAnswer":{"@type":"Answer","text":"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."}},{"@type":"Question","name":"Can 95% Policosanol be directly compared with 90% Octacosanol?","acceptedAnswer":{"@type":"Answer","text":"A 95% Policosanol listing and a 90% Octacosanol listing may describe different analytes. 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A GC profile can separate Octacosanol from other measured Policosanol alcohols, subject to the validated method and identification standards."}},{"@type":"Question","name":"Which documents should a buyer request for SF-001 Policosanol and SF-002 Octacosanol?","acceptedAnswer":{"@type":"Answer","text":"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."}},{"@type":"Question","name":"Does higher Octacosanol purity guarantee a better result than Policosanol?","acceptedAnswer":{"@type":"Answer","text":"Higher Octacosanol assay does not establish that Octacosanol is better than Policosanol for every formulation. 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Conclusion first: Hexacosanol, Octacosanol and Triacontanol are neighboring straight-chain primary fatty alcohols, but they are not interchangeable. From C26 to C28 to C30, only two carbons are added at each step, yet molecular weight, lipophilicity and melting behavior rise—changing processing and formulation choices. Same Functional Group, Different Chain Length Hexacosanol is C26H54O, Octacosanol is C28H58O, and Triacontanol is C30H62O. Each step adds C2H4 and about 28 g/mol. PubChem gives molecular weights of about 382.7, 410.8 and 438.8 g/mol. C26H54O → C28H58O → C30H62O Constant: one terminal hydroxyl group. Changing: chain length, molecular weight, hydrophobic contribution and crystal packing. Two Extra Carbons Shift Physical Behavior Property Hexacosanol Octacosanol Triacontanol Carbon number C26 C28 C30 CAS No. 506-52-5 557-61-9 593-50-0 Molecular weight 382.7 410.8 438.8 g/mol PubChem XLogP3 12.7 13.8 14.9 Polar surface area 20.2 Ų 20.2 Ų 20.2 Ų Representative TCI melting range* 78–81 °C 81–85 °C 85–90 °C The useful pattern is directional: the –OH head remains unchanged while the hydrocarbon chain grows. PubChem XLogP3 rises from 12.7 to 14.9 while polar surface area stays at 20.2 Ų, showing increasing lipophilic character from C26 → C30. *TCI values are representative grade specifications, not universal constants. Purity, homolog distribution and test method can shift an observed melting range. Why This Matters in Formulation Melting behavior affects melt incorporation, oil-phase dissolution and crystallization during cooling. Moving from C26 toward C30 may require a different thermal window or carrier system. In aqueous or semi-aqueous systems, particle size and emulsifier choice may matter as much as assay. Higher purity does not automatically mean easier formulation. Different Molecules, Different Application Logic Octacosanol is established as a nutritional/functional ingredient; Triacontanol is widely studied as a plant growth regulator; Hexacosanol is often evaluated as a homolog-specific high-carbon fatty alcohol. Their shared family does not imply the same formulation or qualification route. What Buyers Should Compare Beyond Purity Qualification logic: target-alcohol assay → homolog profile → GC method → melting range → source → residual controls → particle form → formulation compatibility → multi-batch consistency. Because neighboring C26/C28/C30 homologs are chemically similar, buyers should confirm whether a percentage refers to the target monomer or a broader total alcohol fraction. A headline purity value cannot replace a clear GC profile. Sifeng Bio's C26–C30 Platform HUZHOU SIFENG BIOCHEM CO., LTD states that its platform covers C24–C34 fatty alcohol monomers and mixtures. It lists Octacosanol SF-002 from 10% to 90%, Triacontanol SF-003 at 90% and 95%, and Hexacosanol at 90% and 95%. For sourcing, homolog control and application fit matter more than asking which carbon number is “better.” FAQ What is the main difference between Hexacosanol, Octacosanol and Triacontanol? Hexacosanol, Octacosanol and Triacontanol are C26, C28 and C30 linear primary fatty alcohols. Increasing chain length raises molecular weight, lipophilicity and, directionally, melting temperature. How do Hexacosanol, Octacosanol and Triacontanol differ in melting behavior? Representative TCI ranges are 78–81 °C for Hexacosanol, 81–85 °C for Octacosanol and 85–90 °C for Triacontanol. These are grade-specific ranges, not universal constants. Are Hexacosanol, Octacosanol and Triacontanol interchangeable in formulations? No. Hexacosanol, Octacosanol and Triacontanol differ in chain length, hydrophobicity and melting behavior, so solvent system, process temperature and dispersion strategy should be validated separately. How should B2B buyers compare Hexacosanol, Octacosanol and Triacontanol quality? Buyers comparing Hexacosanol, Octacosanol and Triacontanol should verify target-alcohol assay, homolog profile, GC method, melting range, residual controls and multi-batch consistency. Sources & Verification PubChem: Hexacosanol · Octacosanol · Triacontanol TCI melting-point references: C26 · C28 · C30 NIST Chemistry WebBook: 1-Hexacosanol · Octacosanol Comparing C26, C28 or C30? Share target alcohol, assay, application, annual volume and destination market before sample qualification. HUZHOU SIFENG BIOCHEM CO., LTD · sales@sifengbio.com