21037-26-3

Basic information

• Product Name: 1-deoxy-1-(6-phenylazo-3,4-xylidino)-D-ribitol
• Synonyms: 1-deoxy-1-(6-phenylazo-3,4-xylidino)-D-ribitol;1-(Dribosylamino)-3,4-dimethylphenyl-6-zobenzene;1-Deoxy-1-((4,5-dimethyl-2-(phenylazo)phenyl)amino)-D-ribitol;1-(D-ribo-2,3,4,5-Tetrahydroxypentylamino)-2-phenylazo-4,5-dimethylbenzene;1-[[4,5-Dimethyl-2-(phenylazo)phenyl]amino]-1-deoxy-D-ribitol;1-[2-(Phenylazo)-4,5-dimethylanilino]-1-deoxy-D-ribitol;Einecs 244-163-8;3,4-Xylyl-6-phenylazo-D-ribitylaMine
• CAS NO: 21037-26-3
• Molecular Formula: C₁₉H₂₅N₃O₄
• Molecular Weight: 359.4195
• EINECS: 244-163-8
• Product Categories: Aromatics;Chiral Reagents;Intermediates & Fine Chemicals;Pharmaceuticals
• Mol File: 21037-26-3.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 648.3°Cat760mmHg
• Flash Point: 345.9°C
• Appearance: /
• Density: 1.27g/cm³
• Vapor Pressure: 1.08E-17mmHg at 25°C
• Refractive Index: 1.603
• Storage Temp.: -20°C Freezer, Under inert atmosphere
• Solubility: DMSO (Slightly), Ethyl Acetate, Methanol (Slightly)
• CAS DataBase Reference: 1-deoxy-1-(6-phenylazo-3,4-xylidino)-D-ribitol(CAS DataBase Reference)
• NIST Chemistry Reference: 1-deoxy-1-(6-phenylazo-3,4-xylidino)-D-ribitol(21037-26-3)
• EPA Substance Registry System: 1-deoxy-1-(6-phenylazo-3,4-xylidino)-D-ribitol(21037-26-3)

Safety Data

• Hazardous Substances Data: 21037-26-3(Hazardous Substances Data)

Usage

Chemical Properties

Red Solid

Uses

Riboflavin intermediate.

InChI:InChI=1/C19H25N3O4/c1-12-8-15(20-10-17(24)19(26)18(25)11-23)16(9-13(12)2)22-21-14-6-4-3-5-7-14/h3-9,17-20,23-26H,10-11H2,1-2H3/b22-21+/t17-,18+,19-/m0/s1

Upstream product

• 21037-26-3 1-N-D-ribitylamino-3,4-dimethyl-6-phenylazobenzene 
• 2684-02-8 benzenediazonium 
• 109215-18-1 5-(3,4-dimethyl-anilino)-5-deoxy-D-arabitol 
• 3244-40-4 1-(3,4-dimethyl-anilino)-1-deoxy-D-arabitol 
• 821787-99-9 1-(3,4-dimethyl-anilino)-D-1-deoxy-xylitol 
• 911650-71-0 L-ribo-5-(3.4-dimethyl-anilino)-1.2.3.4-tetraacetoxy-pentane 
• 3051-94-3 3,4-dimethyl-N-ribitylaniline 
• 83916-71-6 N-ribityl-3,4-dimethylaniline 
• 62-53-3 aniline 
• 50-69-1 D-ribose 
• 95-64-7 4-amino-o-xylene 
• 142-04-1 aniline hydrochloride 

Downstream Products

• 83-88-5 riboflavin 
• 64598-64-7 N-D-ribityl-4,5-dimethyl-1,2-phenylenediamine 
• 53187-52-3 D-Lyxoflavin 
• 90467-81-5 1-(6-phenylazo-3.4-dimethyl-anilino)-tetra-O-acetyl-1-deoxy-D-arabitol 
• 21037-26-3 1-N-D-ribitylamino-3,4-dimethyl-6-phenylazobenzene 
• 83-88-5 riboflavin 
• 146-17-8 O^5'-phosphono-riboflavin 
• 401651-41-0 4,5-dimethyl-2-phenylazo-N-ribityl-5'phosphate-aniline 
• 90467-81-5 1-N-D-2',3',4',5'-tetraacetylribitylamino-3,4-dimethyl-6-phenylazobenzene 

Relevant articles and documents

CERTAIN IMPROVEMENTS IN THE SYNTHESIS OF VITAMIN B2

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FORMATION OF ALLOXAZINES AND ISOALLOXAZINES

During investigation of the condensation of aromatic o-amino azo compounds with barbituric acid it was shown that the equilibrium of the cis-trans isomerization process in the initial azo compounds in the solvents used as reaction media during the synthesis of alloxazines and isoalloxazines is shifted toward the trans form.The kinetic investigation of the cis-trans photoisomerization of aromatic o-amino azo compounds was realized by UV spectroscopy and flash photolysis in media with various polarities and proton-donating activities.