Description
Guanine is a purine nucleobase supplied at a minimum purity of 99 % for biochemistry applications. It is identified by CAS number 73-40-5, EG number 200-799-8, empirical formula C₅H₅N₅O and a molar mass of 151,13 g/mol. The product is In biochemical workflows guanine serves as a building block or reference compound when studying base-pairing, metabolic pathways or synthetic routes to nucleotides and related derivatives. Material from Carl ROTH is positioned for laboratory use where consistent assay and transparent identity data are required. The defined purity level supports reproducible preparation of standards and reaction mixtures, while the glass container aids secure storage and handling on the bench. Clear CAS, EG and formula information facilitate inventory control and compliance documentation in research and quality-control settings.
This article belongs on Coenzymes, nucleotides & vitamins, in Biochemicals & reagents.
Key features
- Appearance: white to off-white powder
- Assay: ≥98.0 %
- Loss on drying (3 h, 105 °C): ≤0.5 %
- Heavy metals: ≤0.001 %
- CAS number: 73-40-5
- Pack sizes: 10 g, 25 g
- EG nr.: 200-799-8
- Purity: min. 99 %, for biochemistry
- Empirical formula: C₅H₅N₅O
- Molar mass: 151,13 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Guanine, min. 99 %, for biochemistry, 10 g, glass
What is this article?
Guanine, min. 99 %, for biochemistry, 10 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Coenzymes, nucleotides & vitamins, inside Biochemicals & reagents, in Life Science & Microbiology.
Coenzymes, nucleotides and vitamins are the small molecules enzymes and cells consume: NAD, ATP, a vitamin cofactor. Purity, salt form and hydration are the specification, and many are unstable in solution or in the light. The lot is stored as the label says, often cold.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
Which category should I open next?
The category is Biochemicals & reagents. The sub-category is Coenzymes, nucleotides & vitamins. The catalogue is Life Science & Microbiology.
Shelves beside this one are Amino acids & peptides, Carbohydrates & sugars, Biochemicals (other), Enzymes & substrates, Antibiotics & antimycotics, Lipids, steroids & fatty acids and Detergents & surfactants.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

