Chlorophyll b from spinach

• Catalog No.: 25740
• CAS Number: 519-62-0
• M. F.: C55H84MgN4O6
• M. W.: 921.58366
• Purity: ~95% (HPLC)

SYNONYMS

• Title: 叶绿素 b 来源于菠菜
• IUPAC name: methyl (5R,8S,9S)-14-ethenyl-19-ethyl-18-formyl-9,13,25-trimethyl-4-oxo-8-(3-oxo-3-{[(7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-yl]oxy}propyl)-1,24,26,27-tetraaza-23-magnesaheptacyclo[10.10.2.1^3,^2^2.1^7,^1^0.1^1^7,^2^0.0^2,^6.0^1^5,^2^4]heptacosa-12,14,18-triene-5-carboxylate
• IUPAC Traditional name: methyl (5R,8S,9S)-14-ethenyl-19-ethyl-18-formyl-9,13,25-trimethyl-4-oxo-8-(3-oxo-3-{[(7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-yl]oxy}propyl)-1,24,26,27-tetraaza-23-magnesaheptacyclo[10.10.2.1^3,^2^2.1^7,^1^0.1^1^7,^2^0.0^2,^6.0^1^5,^2^4]heptacosa-12,14,18-triene-5-carboxylate

DATABASE IDS

• MDL Number: MFCD00079053
• CAS Number: 519-62-0
• PubChem SID: 24855584
• Beilstein Number: 4122778
• EC Number: 208-272-4

PROPERTIES

• Empirical Formula (Hill Notation): C55H70MgN4O6
• Purity: ~95% (HPLC)
• Shipped in: dry ice
• Melting Point: 183-185 °C(lit.)
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• Storage Temperature: -20°C
• German water hazard class: 3

DETAILS

Description (English)

Biochem/physiol Actions
Chlorophyll b extends the absorption spectrum of light-harvesting complexes LHC-I and LHC-II above 700 nm, a region of the visible spectrum that is not absorbed when only chlorophyll a is present in the LHCs.1
Other Notes
Dielectric properties in nematic liquid crystals2; Polarization spectra3; Characterization4,5; Note: anhydrous chlorophylls are very easily enolized, epimerized and allomerized in polar organic solvents (dry).

Description (简体中文)

Biochem/physiol Actions
Chlorophyll b extends the absorption spectrum of light-harvesting complexes LHC-I and LHC-II above 700 nm, a region of the visible spectrum that is not absorbed when only chlorophyll a is present in the LHCs.1
Other Notes
Dielectric properties in nematic liquid crystals2; Polarization spectra3; Characterization4,5; Note: anhydrous chlorophylls are very easily enolized, epimerized and allomerized in polar organic solvents (dry).