Astaxanthin

IUPAC Name: 6-Hydroxy-3-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-(4-hydroxy-2,6,6-trimethyl-3-oxocyclohexen-1-yl)-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-2,4,4-trimethylcyclohex-2-en-1-one
Molecular Weight: 596.83848 [g/mol]
Molecular Formula: C₄₀H₅₂O₄
XLogP3-AA: 10.3
H-Bond Donor: 2
H-Bond Acceptor: 4 
EINECS: 207-451-4 
storage temp.: −20 °C
Melting Point: 215-216 °C 
Index of Refraction: 1.595
Molar Refractivity: 189.37 cm³
Molar Volume: 557 cm³
Surface Tension: 44.6 dyne/cm
Density: 1.071 g/cm³
Flash Point: 435.8 °C
Enthalpy of Vaporization: 128.45 kJ/mol
Boiling Point: 774 °C at 760 mmHg
Vapour Pressure: 1.14E-27 mmHg at 25 °C
Product Categories: Carotenoids; Intermediates & Fine Chemicals; Pharmaceuticals
Appearance of Astaxanthin (CAS NO.472-61-7):  Drak-Purple Solid

 Astaxanthin (CAS NO.472-61-7) is used as a feed supplement for salmon, crabs, shrimp, chickens and egg production. Regardless of the source, astaxanthin provides some important benefits beyond coloration. It also has been found to be essential for proper growth and survival. The primary use of it today is as an animal feed additive to impart coloration, this includes farm-raised salmon and egg yolks.Currently, the primary use for humans is as a food supplement. Research shows that due to its potent antioxidant activity, it may be beneficial in cardiovascular, immune, inflammatory and neurodegenerative diseases. Research supports the assumption that it protects body tissues from oxidative damage. It also crosses the blood-brain barrier, which makes it available to the eye, brain and central nervous system to alleviate oxidative stress that contributes to ocular, and neurodegenerative diseases such as glaucoma and Alzheimer's.

Hazard Codes: Xn
Risk Statements: 20/21/22-36/37/38 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26 
S24/25:Avoid contact with skin and eyes. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany of Astaxanthin (CAS NO.472-61-7):  3

  Astaxanthin (CAS NO.472-61-7), its Synonyms are 3,3'-Dihydroxy-beta,beta-carotene-4,4'-dione, (3S,3'S)- ; Astaxanthin, (3S,3'S)- ; Astaxanthin, all-trans-, (3S,3'S)- ; beta,beta-Carotene-4,4'-dione, 3,3'-dihydroxy-, (3S,3'S)- ; (3S,3'S)-3,3'-Dihydroxy-beta,beta-carotene-4,4'-dione ; 3,3'-Dihydroxy-beta-carotene-4,4'-dione ; Astaxanthine .