Molekula
Water for LC-MS
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Water for LC-MS is ultra-pure, high-purity water specifically prepared for liquid chromatography-mass spectrometry (LC-MS) applications, ensuring minimal interference in analytical results. It meets stringent purity requirements to avoid contamination in sensitive detection systems. This product has a CAS number of 7732-18-5, with the molecular formula H2O and a molecular weight of 18.02. It is stored at ambient conditions and carries a signal word of Warning due to potential slip hazards. Molekula supplies Water for LC-MS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Water for LC-MS is ultra-pure, high-purity water specifically prepared for liquid chromatography-mass spectrometry (LC-MS) applications, ensuring minimal interference in analytical results. It meets stringent purity requirements to avoid contamination in sensitive detection systems. This product has a CAS number of 7732-18-5, with the molecular formula H2O and a molecular weight of 18.02. It is stored at ambient conditions and carries a signal word of Warning due to potential slip hazards. Molekula supplies Water for LC-MS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us the quantity you actually need — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price, usually within one working day.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear, colourless liquid |
| Acid | ≤0.0002% |
| Non-Volatile Matter | ≤1ppm |
| Conductivity | ≤1.0 μS/cm |
| APHA | ≤1 |
| Absorbance | @200nm ≤0.05au |
| TOC | ≤10 ppb |
| Total dissolved solids (as non-volatile residue) | ≤1ppm |
| Trace Impurities | ≤20 ppb |
| Alkali content | ≤0.00005% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90034925 |
| CAS Number | 7732-18-5 |
| Molecular Formula | H2O |
| Molecular Weight | 18.02 |
| SMILES | O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2201.90.0000 |
| Tariff Code | 2853901000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P271 Use only outdoors or in a well-ventilated area
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+P351+P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing
- P321 Specific treatment (see supplemental first aid instructions on this label)
- P403+P233 Store in a well-ventilated place. Keep container tightly closed
- P405 Store locked up
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is ultra-pure water for LC-MS used for?
Ultra-pure water for LC-MS is used as a mobile phase solvent in liquid chromatography-mass spectrometry to ensure minimal background noise and interference in analytical results.
What is the chemical formula and molecular weight of this water?
The chemical formula is **H₂O** with a molecular weight of **18.02 g/mol** (theoretical).
How should this water be stored?
Store in a clean, tightly sealed container at **ambient temperature** (15–25°C) to prevent contamination.
What purity grade is available for LC-MS applications?
Molekula supplies **LC-MS grade water** (typically ≥18.2 MΩ·cm resistivity, endotoxin-free, and low in organic/ionic contaminants).
Can Molekula supply this product in bulk?
Yes, we offer bulk quantities (e.g., 5L, 10L, or larger) for LC-MS applications, with packaging tailored to your needs.
What documentation comes with the order?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **batch-specific purity testing** for LC-MS compatibility.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.