R0508
(−)-Riboflavin
acrylamide photopolymerization tested
Synonym(s):
Lactoflavin, Vitamin B2, Vitamin G
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About This Item
Empirical Formula (Hill Notation):
C17H20N4O6
CAS Number:
Molecular Weight:
376.36
EC Number:
201-507-1
UNSPSC Code:
12352200
PubChem Substance ID:
Beilstein/REAXYS Number:
97825
MDL number:
biological source
synthetic (organic)
form
powder
mp
290 °C (dec.) (lit.)
suitability
acrylamide photopolymerization tested
foreign activity
Protease, none detected
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
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
Application
Riboflavin is suitable as a photopolymerization reagent in PAGE by forming free radicals in aqueous solution in the presence of light. Riboflavin photodecomposes to leucoflavin. No free radicals are formed in the absence of oxygen but traces of oxygen allows for leucoflavin to reoxidize with free-radical generation. The catalysts TEMED or DMAPN are commonly added to speed up the free radical formation. The free radicals will cause acrylamide and bis-acrylamide to polymerize to form a gel matrix which can be used for sieving macromolecules. Riboflavin is commonly used in the stacking gel for non-denaturing PAGE because native proteins can be sensitive to persulfate ions from ammonium persulfate. Another advantage of riboflavin over ammonium persulfate is that it will not start polymerizing until the gel is illuminated.
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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