Description
4-Nitrophenyl-alpha-D-galactopyranoside is a biochemical reagent supplied for biochemistry applications The compound is registered under CAS number 7493-95-0 with empirical formula C₁₂H₁₅NO₈ and a molar mass of 301,26 g/mol, and carries EG number 231-343-6. As a nitrophenyl galactoside substrate it is used in life-science and microbiology workflows, including nutrient-media additive and glycosidase-related assay work where alpha-D-galactopyranoside cleavage is monitored. This material from manufacturer Carl ROTH provides laboratories with a clearly specified small pack for method development, screening and routine enzymatic tests. The defined molecular mass and identity data support reproducible preparation of working solutions and documentation in research or teaching settings. Users benefit from a compact glass presentation suited to reference stocks and limited experimental series. Integration into chromogenic or endpoint protocols is straightforward when standard laboratory practice for nitrophenyl glycosides is followed, giving a practical option for groups that need a reliable alpha-galactoside substrate without oversized bulk quantities.
This article belongs on Microbiology (other), in Culture media & microbiology.
Key features
- Identity (TLC): complies
- Solution (5 % in H2O): colourless to nearly colourless
- Water (KF): ≤1.0 %
- Spec. rotation [α]20D (c=1 in water): +242° to +248°
- CAS number: 7493-95-0
- Pack sizes: 100 mg, 500 mg, 1 g
- EG nr.: 231-343-6
- Empirical formula: C₁₂H₁₅NO₈
- Molar mass: 301,26 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about 4-Nitrophenyl-alpha-D-galactopyranoside, for biochemistry, 100 mg, glass
What is this article?
4-Nitrophenyl-alpha-D-galactopyranoside, for biochemistry, 100 mg, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Microbiology (other), inside Culture media & microbiology, in Microbiologie.
This shelf is the microbiology article that is not a medium, a dish or a loop: odd reagents, indicators and small devices used around a culture. The organism and the method still choose the article.
A culture medium is the food and the solid or liquid home of a microorganism. Dehydrated media are powders the laboratory dissolves and sterilises. Ready-to-use plates and tubes are already that. A Petri dish is the plate. Selective media let one kind of organism grow and hold another back. The formulation and the supplements, not the colour of the agar, are the specification. Reference strains are at ATCC. Methods are on PubMed. Biosafety practice is the WHO laboratory biosafety topic.
Which category should I open next?
The category is Culture media & microbiology. The sub-category is Microbiology (other). The catalogue is Microbiologie.
Shelves beside this one are Dehydrated culture media (agar & broth bases), Petri dishes, Ready-to-use culture media (plates, tubes, bottles), Inoculation loops, spreaders & needles and Microbial identification, hygiene monitoring & rapid tests.
What should I check before I order?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.