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Laboratory Chemicals
Laboratory reagents, solvents, standards and prepared solutions for professional analytical workflows.
Explore categoryCATEGORIES
Browse laboratory, chemical and industrial product categories
Explore our main product areas, available subcategories and additional sourcing categories for professional B2B requirements.
MAIN CATEGORIES
Our Main Product Categories
Our core product categories with their available subcategories.
Chemical Raw Materials
Specialty chemicals, additives, surfactants, polymers, resins, silicones and industrial raw materials sourced from established European manufacturers.
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Laboratory Equipment
Selected laboratory equipment, instruments and replacement parts sourced through European supply channels.
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Laboratory Consumables
Consumables for sample preparation, analysis, handling and storage.
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Electronic Components
Quotation-based sourcing for selected electronic and industrial components.
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Machinery & Spare Parts
Machinery, replacement components and technical spare parts sourced to specification.
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Medical Equipment
Selected medical equipment and supplies handled as a secondary sourcing category.
Explore categoryLife Sciences and Biotechnology
Reagents, kits and materials for molecular biology, protein analysis and cell-based research. Weltnexx supports procurement for universities, research institutes and industrial laboratories, with product selection based on the sample, method and required documentation.
Explore categoryLaboratory Safety and Hygiene
Personal protection, spill control, cleaning and chemical storage products for laboratory operations. Specify the substances handled, workplace conditions and required protection or compatibility evidence so the appropriate item can be checked for your institution.
Explore categorySUBCATEGORIES
Other Sourcing Categories
Additional product areas handled through our quotation-based sourcing process.
Laboratory Chemicals
HPLC, UHPLC and LC-MS Solvents
High-purity solvents and reagents for chromatography and mass-spectrometry applications.
Laboratory Chemicals
Analytical Standards
Reference materials for inorganic and organic analytical methods.
Laboratory Chemicals
Volumetric Solutions
Ready-to-use volumetric solutions and titration standards.
Laboratory Chemicals
Microbiology and Culture Media
Culture media, supplements, ingredients and related microbiology products.
Laboratory Chemicals
Analytical Reagents
Acids, bases, salts, solvents and ready-to-use reagents for laboratory analysis. Compare manufacturer references, grades, packaging and technical documentation.
Laboratory Chemicals
Pharmacopoeia-Grade Chemicals
Laboratory chemicals with manufacturer specifications referencing Ph. Eur., BP, USP or NF monographs. Check the applicable pharmacopoeia and specification for each product reference.
EUROPEAN SOURCING
European sourcing across specialist product categories
Weltnexx supports international B2B buyers with product research, supplier communication, technical documentation and delivery coordination through established European supply channels.
Featured Products
Explore selected Scharlab laboratory chemicals and request a quotation based on your requirements.
Scharlab
Scharlau Water, UHPLC-MS
High-purity microfiltered water for UHPLC-MS analysis.
Packaging options2
Scharlab
Scharlau 2-Propanol, LC-MS
High-purity microfiltered 2-propanol for LC-MS analysis.
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Scharlab
Scharlau Ammonium Acetate, Eluent Additive for LC-MS
High-purity ammonium acetate additive for LC-MS eluents.
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Scharlab
Scharlau Formic Acid, Eluent Additive for LC-MS
High-purity formic acid additive for LC-MS eluents.
Packaging options2
Official distributor supportFeatured product
Water, HPLC Gradient Grade
Water, HPLC Gradient Grade is high-purity water for HPLC gradient elution and analytical chemistry applications. According to the official Scharlab specification, chloride is max. 0.00002%, nitrate max. 0.00003%, sulfate and residue on evaporation each max. 0.0001%, and lead max. 0.1 ppm. Maximum gradient-elution absorbance is 0.01 AU at 210 nm and 0.001 AU at 254 nm. The product is microfiltered through 0.22 µm pore-size membranes. Its formula is H₂O, molar mass 18.02 g/mol, and CAS number 7732-18-5.
Read more: Water, HPLC Gradient GradeApplications
Packaging options
Helpful Resources
Practical articles for evaluating products, grades and technical documentation.
pH Deviations and Overheating When Preparing Dehydrated Culture Media
Use product-specific instructions to assess water, mixing, heating and pH-measurement issues during preparation of dehydrated culture media.
Read article
Culture-Media Lot Acceptance: CoA and Performance Checks
Assess culture-media lots using product identity, CoA, growth support, selectivity and intended use, without treating general certification claims as product evidence.
Read article
B2B SOURCING FROM EUROPE
Sourcing support for your product requirements
We assess your product requirements through manufacturers and supply channels across Europe. Share the brand, product name or catalogue number so we can prepare a quotation covering price, availability and delivery options.
FEATURED BRANDS
Featured brands
Explore established manufacturers represented across the Weltnexx catalog.
HOW IT WORKS
A clear route from requirement to quotation
A simple three-step process keeps product identification, technical review and quotation preparation clear.
- Step 1
Share your requirement
Send the product, brand or catalog number, quantity, packaging and destination.
- Step 2
We verify the supply
We review the product reference, sourcing route, documentation and delivery conditions.
- Step 3
Receive your quotation
You receive a tailored B2B offer with the available commercial and delivery details.
Tell us what you need to source
Share the product, specification, quantity and delivery country for a tailored B2B quotation.