50299-51-9

Basic information

• Product Name: â,â-Carotene-4,4'-dione,2,3-didehydro-3- hydroxy-
• CAS NO: 50299-51-9
• Molecular Weight: 578.835
• Mol File: 50299-51-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: â,â-Carotene-4,4'-dione,2,3-didehydro-3- hydroxy- (CAS DataBase Reference)
• NIST Chemistry Reference: â,â-Carotene-4,4'-dione,2,3-didehydro-3- hydroxy- (50299-51-9)
• EPA Substance Registry System: â,â-Carotene-4,4'-dione,2,3-didehydro-3- hydroxy- (50299-51-9)

Safety Data

• Hazardous Substances Data: 50299-51-9(Hazardous Substances Data)

Upstream product

• 65861-49-6 4-oxo-β-apo-12’-carotenal 
• 5056-17-7 (2E,4E,6E)-2,7-dimethyl-2,4,6-octatrienedial 
• 209615-09-8 2,2'-(1,6-Dimethyl-1,3,5-hexatrienylen)bis(5,5-dimethyl-1,3-dioxan) 
• 80713-45-7 7-(5,5-Dimethyl-1,3-dioxan-2-yl)-2,7-dimethyl-2,4,6-octatrienal 
• 514-78-3 canthaxanthin 

Downstream Products

• 62335-49-3 2-Nor-β,β-carotin-3,4,4'-trion 

Relevant articles and documents

Synthese von optisch aktiven, natuerlichen Carotinoiden und strukturell verwandten Naturprodukten. IX. Synthese von (3R)-Hydroxyechinenon, (3R,3'R)- und (3R,3'S)-Adonixanthin, (3R)-Adonirubin, deren optischen Antipoden und verwandten Verbindungen

The synthesis of racemic and optically active hydroxyechinenone (12-14), adonixanthin (16-19), adonirubin (22-24), meso-astaxanthin (26) and their corresponding diosphenols (15, 20, 21, 25, 27, 28, and 29) by Wittig reaction is reported, starting from suitable C15-phosphonium salts and C10-aldehydes.