(−)-Riboflavin

SIGMA/R4500 - from Eremothecium ashbyii, ≥98%

Synonym: Lactoflavin; Vitamin B₂; Vitamin G

CAS Number: 83-88-5
Empirical Formula (Hill Notation): C₁₇H₂₀N₄O₆
Molecular Weight: 376.36
EC Number: 201-507-1
MDL Number: MFCD00005022
Linear Formula: C₁₇H₂₀N₄O₆
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-R4500-5G	5 g	$42.70 1/EA	Add To Favorites
45-R4500-25G	25 g	$42.10 1/EA	Add To Favorites
45-R4500-100G	100 g	$134.00 1/EA	Add To Favorites
45-R4500-500G	500 g	$523.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: R4500-100G

Properties
Descriptions
Safety Info.
Basic Data

assay	≥98%
biological source	Eremothecium ashbyii
color	yellow to orange
form	powder
InChI	1S/C17H20N4O6/c1-7-3-9-10(4-8(7)2)21(5-11(23)14(25)12(24)6-22)15-13(18-9)16(26)20-17(27)19-15/h3-4,11-12,14,22-25H,5-6H2,1-2H3,(H,20,26,27)/t11-,12+,14-/m0/s1
InChI key	AUNGANRZJHBGPY-SCRDCRAPSA-N
mp	290 °C (dec.) (lit.)
Quality Level	200
SMILES string	CC1=C(C)C=C(N(C[C@H](O)[C@@H]([C@H](O)CO)O)C(C2=N3)=NC(NC2=O)=O)C3=C1
storage temp.	room temp

Application:	Riboflavin has been used: • to check the role of riboflavin diet in rats • as a supplement in HECM-6 medium (hamster embryo culture medium) • as a supplement in the bacterial basal media
Biochem/physiol Actions:	Riboflavin is a key component of the redox cofactors flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) that are used by a wide variety of flavoprotein oxidoreductases, dehydrogenase(s), decarboxylase(s) and electron transporters. Riboflavin is involved in various cellular processes, including β oxidation in lipid metabolism, glucose metabolism, protection from cellular oxidative injury, DNA and RNA metabolism, gluconeogenesis, erythropoiesis and generation of corticosteroids. Riboflavin deficiency causes ariboflavinosis with symptoms such as sore throat, hyperemia, edema of oral and mucous membranes, cheilosis and glossitis.
General description:	Riboflavin belongs to the vitamin-B family and contains a pentose side chain ribitol.
Packaging:	1 kg in poly drum
Packaging:	5, 25, 100 g in glass bottle
Packaging:	500 g in poly drum

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥98%
mp	290 °C (dec.) (lit.)
Storage Temp.	room temp
UNSPSC	12352205

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