Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level





optical activity

[α]/D +103 to +105°°(lit.)


gas chromatography (GC): suitable


160-163 °C (lit.)

SMILES string




InChI key


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L-Arabinose is used as a substrate to identify, differentiate and characterize pentose sugar isomerase(s). L-Arabinose is used in the bioproduction of L-ribose.


10 mg in autosample vial

Biochem/physiol Actions

L-Arabinose is the naturally occurring isomer and is a constituent of plant polysaccharides. Most bacteria contain an inducible arabinose operon that codes for a series of enzymes and transporters that allows L-arabinose to be used as the sole carbon source in microbial culture.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. A3256.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Wolf-Dieter Reiter
Current opinion in plant biology, 11(3), 236-243 (2008-05-20)
During the past few years, substantial progress has been made to understand the enzymology and regulation of nucleotide sugar interconversion reactions that are irreversible in vivo on thermodynamic grounds. Feedback inhibition of enzymes by metabolic end products appears to be...
Tania Chroumpi et al.
Frontiers in bioengineering and biotechnology, 9, 644216-644216 (2021-03-26)
The filamentous ascomycete Aspergillus niger has received increasing interest as a cell factory, being able to efficiently degrade plant cell wall polysaccharides as well as having an extensive metabolism to convert the released monosaccharides into value added compounds. The pentoses...
Koen J T Venken et al.
Nucleic acids research, 36(18), e114-e114 (2008-08-05)
Studying gene function in the post-genome era requires methods to localize and inactivate proteins in a standardized fashion in model organisms. While genome-wide gene disruption and over-expression efforts are well on their way to vastly expand the repertoire of Drosophila...
Wei Lin et al.
Molecular cell, 70(1), 60-71 (2018-04-03)
Fidaxomicin is an antibacterial drug in clinical use for treatment of Clostridium difficile diarrhea. The active ingredient of fidaxomicin, lipiarmycin A3 (Lpm), functions by inhibiting bacterial RNA polymerase (RNAP). Here we report a cryo-EM structure of Mycobacterium tuberculosis RNAP holoenzyme in...
Amin Espah Borujeni et al.
Nature communications, 11(1), 5001-5001 (2020-10-07)
To perform their computational function, genetic circuits change states through a symphony of genetic parts that turn regulator expression on and off. Debugging is frustrated by an inability to characterize parts in the context of the circuit and identify the...

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