Bacteriochlorophyll a

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MedKoo CAT#: 330053

CAS#: 17499-98-8

Description: Bacteriochlorophyll a is a Bacteriochlorophyll from Rhodopseudomonas sphaeroides. Bacteriochlorophylls a, b, and g are bacteriochlorins, meaning their molecules have a bacteriochlorin macrocycle ring with two reduced pyrrole rings (B and D). Bacteriochlorophylls c, d, e, and f are chlorins, meaning their molecules have a chlorin macrocycle ring with one reduced pyrrole ring (D).

Price and Availability

Size Price Shipping out time Quantity
1mg USD 550 2 Weeks
5mg USD 1450 2 Weeks
1g USD 7950 3-4 months
Inquire bulk and customized quantity

Pricing updated 2020-12-02. Prices are subject to change without notice.

Bacteriochlorophyll a is in stock.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 330053
Name: Bacteriochlorophyll a
CAS#: 17499-98-8
Chemical Formula: C55H74MgN4O6
Exact Mass: 910.5459
Molecular Weight: 911.524
Elemental Analysis: C, 72.47; H, 8.18; Mg, 2.67; N, 6.15; O, 10.53

Synonym: Bacteriochlorophyll a; Bacteriochlorophyll; C11242; Bacteriochlorophyll from Rhodopseudomonas sphaeroides;

IUPAC/Chemical Name: magnesium;methyl (3R,11R,12R,21S,22S)-16-acetyl-11-ethyl-12,17,21,26-tetramethyl-4-oxo-22-[3-oxo-3-[(E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enoxy]propyl]-23,25-diaza-7,24-diazanidahexacyclo[,8.110,13.115,18.02,6]hexacosa-1(23),2(6),5(26),8,10(25),13,15,17,19-nonaene-3-carboxylate


InChi Code: InChI=1S/C55H75N4O6.Mg/c1-13-39-34(7)41-29-46-48(38(11)60)36(9)43(57-46)27-42-35(8)40(52(58-42)50-51(55(63)64-12)54(62)49-37(10)44(59-53(49)50)28-45(39)56-41)23-24-47(61)65-26-25-33(6)22-16-21-32(5)20-15-19-31(4)18-14-17-30(2)3;/h25,27-32,34-35,39-40,51H,13-24,26H2,1-12H3,(H-,56,57,58,59,60,62);/q-1;+2/p-1/b33-25+;/t31-,32-,34-,35+,39-,40+,51-;/m1./s1

SMILES Code: CC[C@@H]1[C@H](C2=CC3=C(C(=C([N-]3)C=C4[C@H]([C@@H](C(=N4)C5=C6C(=C(C(=CC1=N2)[N-]6)C)C(=O)[C@@H]5C(=O)OC)CCC(=O)OC/C=C(\C)/CCC[C@H](C)CCC[C@H](C)CCCC(C)C)C)C)C(=O)C)C.[Mg+2]

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>3 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Additional Information

Bacteriochlorophylls (BChl) are photosynthetic pigments that occur in various phototrophic bacteria. They were discovered by C. B. van Niel in 1932. They are related to chlorophylls, which are the primary pigments in plants, algae, and cyanobacteria. Organisms that contain bacteriochlorophyll conduct photosynthesis to sustain their energy requirements, but do not produce oxygen as a byproduct. They use wavelengths of light not absorbed by plants or Cyanobacteria. Replacement of Mg2+ with protons gives bacteriophaeophytin (BPh), the phaeophytin form.


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5: Rätsep M, Linnanto JM, Freiberg A. Higher Order Vibronic Sidebands of Chlorophyll a and Bacteriochlorophyll a for Enhanced Excitation Energy Transfer and Light Harvesting. J Phys Chem B. 2019 Aug 22;123(33):7149-7156. doi: 10.1021/acs.jpcb.9b06843. Epub 2019 Aug 9. PMID: 31356081.

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10: Irgen-Gioro S, Spencer AP, Hutson WO, Harel E. Coherences of Bacteriochlorophyll a Uncovered Using 3D-Electronic Spectroscopy. J Phys Chem Lett. 2018 Oct 18;9(20):6077-6081. doi: 10.1021/acs.jpclett.8b02217. Epub 2018 Oct 5. PMID: 30273488.

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14: Zeng Y, Selyanin V, Lukeš M, Dean J, Kaftan D, Feng F, Koblížek M. Erratum: Characterization of the microaerophilic, bacteriochlorophyll a-containing bacterium Gemmatimonas phototrophica sp. nov., and emended descriptions of the genus Gemmatimonas and Gemmatimonas aurantiaca. Int J Syst Evol Microbiol. 2017 Feb;67(2):521-522. doi: 10.1099/ijsem.0.001859. Epub 2017 Feb 24. Erratum for: Int J Syst Evol Microbiol. 2015 Aug;65(8):2410-9. PMID: 28234578.

15: Zhang S, Lindsey JS. Construction of the Bacteriochlorin Macrocycle with Concomitant Nazarov Cyclization To Form the Annulated Isocyclic Ring: Analogues of Bacteriochlorophyll a. J Org Chem. 2017 Mar 3;82(5):2489-2504. doi: 10.1021/acs.joc.6b02878. Epub 2017 Feb 22. PMID: 28225270.

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19: Lehours AC, Jeune AL, Aguer JP, Céréghino R, Corbara B, Kéraval B, Leroy C, Perrière F, Jeanthon C, Carrias JF. Unexpectedly high bacteriochlorophyll a concentrations in neotropical tank bromeliads. Environ Microbiol Rep. 2016 Oct;8(5):689-698. doi: 10.1111/1758-2229.12426. Epub 2016 Jul 12. PMID: 27264016.

20: Cardona T. Origin of Bacteriochlorophyll a and the Early Diversification of Photosynthesis. PLoS One. 2016 Mar 8;11(3):e0151250. doi: 10.1371/journal.pone.0151250. PMID: 26953697; PMCID: PMC4783071.