ChemSP — A brand of Jinan Shenghe Chemical Co., Ltd.
High-quality Fluorescent Brightener OB supplied by ChemSP Competitive pricing, reliable delivery, and full technical support for B2B buyers worldwide.
ChemSP - your B2B chemical sourcing brand. We provide consolidated logistics and multilingual technical support to ensure every shipment is stable and reliable.
Fluorescent Brightener OB is offered by ChemSP (Jinan Shenghe Chemical Co., Ltd.) as a catalogued fine chemicals raw material for B2B buyers.
Written as C28H18N2O2, the molecule contains 28 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 2 oxygen atoms in a single defined ratio — the basis for assay calculation and for reconciling batch weights against a specification.
With MW 414.5 the material is a mid-sized molecule, typically supplied as a free-flowing solid or a viscous liquid depending on the salt form.
| CAS Number | 36422-63-6 |
|---|---|
| Molecular Formula | C28H18N2O2 |
| Molecular Weight | 414.5 |
| LogP (calculated) | 7.2 |
| Catalog Category | Fine Chemicals / Textile Auxiliaries |
From the composition alone the material presents a nitrogen- and oxygen-bearing framework (amide, amino acid or hydroxamate type), which dictates the compatible solvent set. A comparatively low hydrogen-to-carbon ratio together with the ring count is consistent with an aromatic or otherwise highly unsaturated core.
LogP 7.2 makes it almost water-insoluble, so emulsion or surfactant-assisted handling is usually worth evaluating early.
Fluorescent Brightener OB (CAS 36422-63-6, molecular formula C28H18N2O2, molecular weight 414.5 g/mol) is mainly applied in chemical synthesis, fine chemical manufacturing and related industrial processes. For specification, COA and bulk prices of Fluorescent Brightener OB, write to our sales team.
Specific end-uses should be checked against your own regulatory assessment before the material is qualified in a finished product.
Supplied in standard export packaging appropriate to the physical form of the material. The exact pack size, inner liner and net weight are fixed on the order acknowledgement, since they depend on whether the lot ships as a solid, a paste or a liquid. Customers with drum, liner or pallet constraints should specify them when enquiring.
Documentation released with the lot includes a batch-specific COA, a GHS-format safety data sheet, and a specification sheet reflecting the agreed acceptance criteria. Retained samples are kept so that a later query can be checked against the original material.
Pricing depends on quantity and destination, so a short enquiry — product, CAS, quantity, delivery point — is enough for us to respond with a firm offer, normally the next business day.
What is the CAS number of Fluorescent Brightener OB?
The CAS registry number for Fluorescent Brightener OB is 36422-63-6. Please quote it on any enquiry so that a quotation is matched to the correct grade.
Can you supply Fluorescent Brightener OB with a specification we define?
Yes. The acceptance criteria can be adjusted within what the route allows — most often assay, moisture, heavy metals or particle size. Any change is written into the specification before the lot is released.
Which documents come with the shipment?
A batch-specific COA and a GHS-format safety data sheet. Additional declarations — non-GMO, allergen, origin, or a customer-specific template — can be issued on request.
Fluorescent Brightener OB is supplied against a clear, batch-specific specification. When you request a quote, our team confirms the assay or purity grade, physical form, pack size and any residue limits relevant to your application. Typical parameters documented on the Certificate of Analysis include identity (CAS number), molecular formula, molecular weight, appearance, assay, loss on drying and heavy-metal limits where applicable.
Buyers source Fluorescent Brightener OB across food and beverage, nutraceutical and pharmaceutical, cosmetic and personal care, and selected industrial formulations. ChemSP aligns the grade and documentation set to the target application and destination market.
ChemSP ships Fluorescent Brightener OB with a Certificate of Analysis for every batch and a Safety Data Sheet on request. Additional documentation such as specification sheets, third-party test reports and regulatory support letters is available to qualified buyers to streamline import, registration and quality-assurance workflows.
Store Fluorescent Brightener OB in a cool, dry, well-ventilated area in its original, tightly closed container, protected from moisture and direct sunlight. Follow the precautions in the Safety Data Sheet and standard chemical-handling guidance. Shelf life and re-test intervals are stated on the Certificate of Analysis.
MOQ depends on grade and pack size. Sampling quantities typically start from 1 kg, with commercial volumes from 25 kg. Share your required volume and we will quote accordingly.
Yes. Samples and batch-specific Certificates of Analysis are available on request, and third-party testing can be arranged for qualified buyers.
Every shipment includes a Certificate of Analysis. The Safety Data Sheet, specification sheets and regulatory support letters are provided on request to support customs clearance and product registration in your market.
Lead times vary with grade and volume. ChemSP quotes a firm delivery window with each offer, and standard international trading terms apply.
| Element | Atoms | Mass fraction |
|---|---|---|
| C | 28 | 81.14% |
| O | 2 | 7.72% |
| N | 2 | 6.76% |
| H | 18 | 4.38% |
The table below is calculated from the molecular formula C28H18N2O2. The values are theoretical and are intended as a reference for incoming inspection and for setting a purchase specification.
Contains nitrogen (2 atoms). Nitrogen-bearing structures are often amine-like: they can absorb carbon dioxide from air and develop odour if the packaging is not tight.
A degree of unsaturation of 21 points to an aromatic or ring-containing skeleton.
Protect from light and air. Unsaturated and aromatic structures tend to darken on oxidation, so opaque or inert-headspace packaging is preferred for long storage.
Store under ventilation with tightly closed packaging; amine-type nitrogen absorbs carbon dioxide from air and may develop odour.
These are the parameters normally reported on a certificate of analysis. Limits are lot-specific and follow the specification agreed between supplier and buyer; no numeric limits are stated or implied here.
Fluorescent Brightener OB is identified by CAS 36422-63-6, molecular formula C28H18N2O2 and a molar mass of 414.5 g/mol.
Calculated from C28H18N2O2, the composition by mass is: C 81.1%, O 7.7%, N 6.8%, H 4.4%.
A certificate of analysis normally reports Assay / content, Loss on drying / moisture, Appearance and odour, Heavy metals (as Pb), Shelf life and packaging. Exact limits are agreed with the buyer and are lot-specific.
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
Yes. A batch-specific COA and free or charged sample are available on request before bulk ordering.
Yes. We offer custom grade, particle size and purity adjustment based on your application and order volume.
MOQ depends on the product; small quantities are supported for R&D and trial runs.
Every batch is tested in-house and retains full traceability from raw material to finished goods.
Looking for pricing, availability or technical data for Fluorescent Brightener OB?
Email us at sales@chemsp.com or use the button above. Our team typically responds within 1 business day.
We are a professional chemical supplier based in Jinan, China. Since 2013, we have been connecting manufacturers and global B2B buyers with reliable sourcing, quality-controlled products and efficient logistics.
Our business covers food & feed additives, fine chemicals, pharmaceutical intermediates, eco-materials, coatings and specialty chemicals — all non-hazardous and compliant with our licensed scope.