Setting up or restocking a research lab means choosing the right lab chemicals at the right grade. From organic synthesis to molecular biology, the chemicals on your shelves determine experiment quality, safety, and reproducibility. This guide covers the core categories every Pakistani research lab should plan for — and how to source them locally through Bioworld Scientific.
Organic Solvents
Solvents are the backbone of extraction, chromatography, and sample preparation. Stock by category based on your department's focus:
- Alcohols — Sterilization, precipitation, general lab use
- HPLC-grade solvents — Reversed-phase and normal-phase chromatography
- Ketones & esters — Cleaning, degreasing, extractions
- Extraction solvents — Nucleic acid and organic extractions (use in fume hood)
- Aprotic polar solvents — Cryopreservation, compound solubilization, synthesis
- Hydrocarbon solvents — Normal-phase chromatography and extractions
Always match solvent grade to your application — see our lab chemical grades guide for ACS vs HPLC vs AR comparisons.
Acids and Bases
| Category | Common Use | Storage Note |
|---|---|---|
| Mineral acids | pH adjustment, digestions | Corrosive cabinet, ventilated |
| Concentrated acids | Digestions, dehydration | Separate from bases and organics |
| Oxidizing acids | Metal digestions, oxidations | Oxidizer — store away from organics |
| Organic acids | Buffer component, extractions | Corrosive, pungent fumes |
| Caustic bases | pH adjustment, cleaning | Store dry, away from acids |
| Ammonia solutions | Protein work, pH adjustment | Ventilated storage |
Buffers and Salts
Buffers maintain stable pH in biochemical and cell-based experiments. Essential stock items include:
- Phosphate-buffered saline (PBS) — washing cells, diluting antibodies
- Tris-HCl — DNA/RNA work, protein electrophoresis
- HEPES — cell culture medium buffering
- TAE and TBE — agarose gel electrophoresis running buffers
- Sodium chloride, potassium chloride, magnesium chloride — general reagents
- EDTA — chelating metal ions in nucleic acid protocols
- SDS (sodium dodecyl sulfate) — protein denaturation, gel electrophoresis
- DTT and β-mercaptoethanol — reducing agents for protein work
Stains and Indicators
- Coomassie Brilliant Blue — protein gel staining
- Ethidium bromide / SYBR Safe — DNA visualization (handle with care)
- Crystal violet — cell staining, Gram staining
- Giemsa stain — blood smear and chromosome staining
- Iodine solution — starch indicator, microbiology
- Phenolphthalein & methyl orange — titration indicators
- Bromophenol blue — electrophoresis tracking dye
Biochemistry and Molecular Biology Reagents
Life science labs need specialized reagents beyond general chemistry:
- Agarose and acrylamide/bis-acrylamide — gel electrophoresis
- Proteinase K, RNase A, DNase-free water — nucleic acid purification
- Restriction enzymes and DNA ladders — cloning workflows
- Taq polymerase and dNTPs — PCR (PCR lab essentials)
- BSA (bovine serum albumin) — blocking agent in immunoassays
- Glycerol — enzyme storage, gel loading
- Tween-20 and Triton X-100 — detergents for washing and lysis
How to Choose the Right Grade
Not every experiment needs HPLC-grade solvents. Use AR (Analytical Reagent) grade for routine bench work, ACS grade for quantitative analysis, and HPLC/LC-MS grade for chromatography. Our detailed chemical grades comparison helps you avoid over-spending or under-specifying.
Storage and Safety Essentials
Proper chemical storage protects your team and your inventory. Pair your chemical order with:
- Acid and base cabinets with secondary containment
- Flammable storage for solvents
- Spill kits and eyewash/shower access
- PPE including gloves, goggles, and lab coats
- Clear labelling with date opened and hazard symbols
Source Lab Chemicals in Pakistan
Bioworld Scientific (BWS) supplies lab chemicals to universities, hospitals, and private R&D across Pakistan. We stock solvents, acids, buffers, and specialty reagents with proper documentation and institutional pricing.
Related Guides
- Lab Chemical Grades: ACS vs AR vs HPLC
- Essential Glassware for Research Labs
- Essential Lab Consumables
- PCR Lab Essentials
Disclaimer: Laboratory chemicals sold by Bioworld Scientific are intended for research and analytical use. Follow institutional safety protocols and local regulations for handling and disposal.