The conductivity of this water is not determined. Currently, there is no Molecular Biology grade water product available that is tested for conductivity.
W4502
Water
suitable for electrophoresis, PCR
Water
Synonym(s):
DNase-Free Water, Not DEPC Treated, Nuclease-Free Water, Protease-Free Water, RNase-Free Water
Sign In to View Organizational & Contract Pricing.
Select a Size
1 L
$86.00
10 X 50 ML
$151.00
6 X 1 L
$404.00
10 L
$421.00
$86.00
Check Cart for Availability
Subscriptions are currently unavailable.
Ships Every 4 weeks
About This Item
Linear Formula:
H2O
CAS Number:
Molecular Weight:
18.02
NACRES:
NA.31
PubChem Substance ID:
UNSPSC Code:
12191602
EC Number:
231-791-2
MDL number:
Beilstein/REAXYS Number:
2050024
Technique(s):
PCR: suitable
electrophoresis: suitable
electrophoresis: suitable
Bp:
100 °C (lit.)
Vapor pressure:
3 mmHg
Skip To
Product Name
Water, Nuclease-Free Water, for Molecular Biology
InChI key
XLYOFNOQVPJJNP-UHFFFAOYSA-N
InChI
1S/H2O/h1H2
SMILES string
O
vapor density
<1 (vs air)
vapor pressure
3 mmHg
sterility
0.1 μm filtered
form
liquid
technique(s)
PCR: suitable
electrophoresis: suitable
refractive index
n20/D 1.34 (lit.)
pH
5-7
bp
100 °C (lit.)
mp
0 °C (lit.)
density
1.000 g/mL at 3.98 °C (lit.)
foreign activity
DNase, RNase, Protease, free
Quality Level
Looking for similar products? Visit Product Comparison Guide
1 of 4
This Item | 9801-OP | 95289 | 95284 |
|---|---|---|---|
| technique(s) PCR: suitable, electrophoresis: suitable | technique(s) - | technique(s) - | technique(s) FISH: suitable |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form liquid | form liquid | form liquid | form liquid |
| mp 0 °C (lit.) | mp 0 °C (lit.) | mp 0 °C (lit.) | mp 0 °C (lit.) |
| refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) | refractive index n20/D 1.34 (lit.) |
| density 1.000 g/mL at 3.98 °C (lit.) | density 1.000 g/mL at 3.98 °C (lit.) | density 1.000 g/mL at 3.98 °C (lit.) | density 1.000 g/mL at 3.98 °C (lit.) |
Application
Features and Benefits
- Nuclease-Free Water
- DNase-Free, RNase-Free, Protease- Free
- Not DEPC Treated
- 0.1 um Filtered
- Prepared from Double Distilled and Deionized Water
- Suitable for use in Molecular Applications
This product is 0.1um filtered. It is designated as a Molecular Biology Reagent and is suitable for molecular biology applications. This product has been analyzed for the absence of nucleases and proteases, and has undergone bioburden analysis. It has not been treated with diethyl pyrocarbonate (DEPC).
Other Notes
Easily compare specifications for Water products with the Water specification table.
Preparation Note
This product is prepared from double distilled and deionized water
related product
Product No.
Description
Pricing
Storage Class
12 - Non Combustible Liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Gene expression signals involved in ischemic injury, extracellular matrix composition and fibrosis defined by global mRNA profiling of the human left ventricular myocardium.
Gabrielsen A et al
Journal of Molecular and Cellular Cardiology, 42(4), 870-883 (2007)
Effect of sward dry matter digestibility on methane production, ruminal fermentation, and microbial populations of zero-grazed beef cattle.
Hart KJ et al
Journal of Animal Science, 87(10), 3342-3350 (2009)
Comparison of coliforms and coliphages as tools for assessment of viral contamination in river water.
Skraber S et al
Applied and Environmental Microbiology, 70(6), 3644-3649 (2004)
Polymorphic exact tandem repeat A (PETRA): a newly defined lineage of mycobacterium tuberculosis in israel originating predominantly in Sub-Saharan Africa.
Freidlin PJ et al
Journal of Clinical Microbiology, 47(12), 4006-4020 (2009)
Presence of viral genomes in mineral water: a sufficient condition to assume infectious risk?
Gassilloud B et al
Applied and Environmental Microbiology, 69(7), 3965-3969 (2003)
Articles
Understand how mRNA vaccines induce immunity. and read how synthetic mRNA is prepared for vaccine immunogens and other biopharmaceuticals. Find reagents for synthesis of mRNA.
Se dice que las sustancias son miscibles entre sí si se disuelven hasta formar una disolución uniforme. Marque o descargue nuestra tabla de miscibilidad para los disolventes comunes del laboratorio.
Quality DNA crucial for meaningful data; intact DNA key for successful chromosomal aberration analysis from FFPE tissues.
Viral RNA Extraction Buffer (VRE100) and related reagents for qRT-PCR and additional viral RNA analyses.
Protocols
Protocol for the preparation of Antibody Sensitized Sheep Erythrocytes. Includes product numbers and links.
TE Buffer; Elution Buffer; 10x Ligation Buffer; 0.5 M PIPES Buffer; Inoue Transformation Buffer
Whole Genome Amplification products, including kits for DNA extraction, support various DNA sources.
Related Content
KOD One™ PCR Master Mix overview for ultra-fast PCR with high specificity, fidelity, and yield
-
W4502 Millipore Water: what is the ohms of this water?
1 answer-
Helpful?
-
-
Do you have stability data for W4502 for evaluating if Shelf Life can be extended?
1 answer-
This water product is not assigned an expiration or retest date. In the original sealed container the material is stable nearly indefinitely. Items that are not assigned an expiration date are warranteed for 1 year from the date of shipment.
Helpful?
-
-
Is this water sterile? Can this be used for cell culture?
1 answer-
Product W4502 is not sterile, this product is prepared from Double Distilled and Deionized Water. This product is best suitable to use in molecular biology applications. See product W3500 for Sterile, Tissue Culture grade Water:
https://www.sigmaaldrich.com/product/sigma/w3500Helpful?
-
-
In what vessel does this product come? A bottle, a bag with a spigot, etc.?
1 answer-
This product is packaged in square PET square bottles. To request a quote for larger volumes or specialized packaging, please submit a request at the link below:
https://www.sigmaaldrich.com/services/support/bulk-quotation-requestHelpful?
-
-
This product does not list an expiration date on the label. Could someone provide an expiration for lot number BCCH7145?
1 answer-
This product does not contain an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services
Helpful?
-
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service