Grade guide
Molecular Biology Grade chemicals
Reagents tested for absence of DNase, RNase and protease activity and low contaminants, for PCR, cloning, sequencing and nucleic-acid work.
199 Molecular Biology Grade products
Dicamba, for molecular biology, plant tissue culture tested
- CAS
- 1918-00-9
- Formula
- C8H6Cl2O3
- MW
- 221.03 g/mol
VQ-046895
Dimethylethylhexadecylammonium bromide, for molecular biology
- CAS
- 124-03-8
- Formula
- C20H44BrN
- MW
- 378.5 g/mol
VQ-046616
EDTA disodium salt dihydrate, for molecular biology, 99%
- CAS
- 6381-92-6
- Formula
- C10H18N2Na2O10
- MW
- 372.24 g/mol
VQ-003324
Ferric chloride anhydrous powder, for molecular biology
- CAS
- 7705-08-0
- Formula
- Cl3Fe
- MW
- 162.2 g/mol
VQ-046505
Glutathione oxidized, for molecular biology, 99.5%
- CAS
- 27025-41-8
- Formula
- C20H32N6O12S2
- MW
- 612.6 g/mol
VQ-002636
Glutathione reduced, for molecular biology, 99.5%
- CAS
- 70-18-8
- Formula
- C10H17N3O6S
- MW
- 307.33 g/mol
VQ-003188
FAQs
Is molecular biology grade sterile?
Not necessarily. It is tested for nuclease and protease activity. Sterility and endotoxin levels are separate specifications and are stated only where tested.
Can I use AR grade Tris for PCR?
It may work, but it has not been tested for nuclease activity or PCR inhibitors. Molecular biology grade reduces that risk, particularly for RNA work.
How is RNase activity tested?
Typically by incubating a solution of the reagent with an RNA substrate and checking for degradation by electrophoresis or fluorescence.
Other grades
HPLC GradeGC GradeAR Grade (Analytical Reagent)ACS GradeLR Grade (Laboratory Reagent)Extra Pure GradeSpectroscopy GradeLC-MS GradeIP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)USP Grade (United States Pharmacopeia)Ph. Eur. Grade (European Pharmacopoeia)Food Grade (FCC)Technical GradeElectronic GradeDeuterated & Stable-Isotope-Labelled CompoundsPharmaceutical Secondary Reference Standards
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