ChemFOnt: Showing chemical card for pheophorbide b (CFc000337951)

Record Information
Version	1.0
Creation Date
Update Date	2022-09-14 05:32:06 UTC
Chemfont ID	CFc000337951
Molecule Identification
Common Name	pheophorbide b
Definition	Pheophorbide b is practically insoluble (in water) and an extremely strong acidic compound (based on its pKa). Pheophorbide b can be found in a number of food items such as european cranberry, sesame, teff, and quinoa, which makes pheophorbide b a potential biomarker for the consumption of these food products.
Structure	MOL SDF PDB SMILES InChI MOL for CFc000337951 (pheophorbide b) Not Available 3D MOL for CFc000337951 (pheophorbide b) Not Available 3D SDF for CFc000337951 (pheophorbide b) Not Available 3D-SDF for CFc000337951 (pheophorbide b) Not Available PDB for CFc000337951 (pheophorbide b) Not Available 3D PDB for CFc000337951 (pheophorbide b) Not Available SMILES for CFc000337951 (pheophorbide b) Not Available INCHI for CFc000337951 (pheophorbide b) Not Available Structure for CFc000337951 (pheophorbide b) 3D Structure for CFc000337951 (pheophorbide b) Not Available
Synonyms	Not Available
Chemical Formula
Average Molecular Weight
Monoisotopic Molecular Weight
IUPAC Name
Traditional Name
CAS Registry Number	Not Available
SMILES	Not Available
InChI Identifier
InChI Key
Chemical Taxonomy
Classification	Not classified
Functional Ontology
Physiological effect	Not Available
Disposition	Source Exogenous Exogenous (FooDB: ) Food Herb and spice Herb Alfalfa (FooDB: FOOD00286) Celery leaves (FooDB: FOOD00249) Chives (FooDB: FOOD00009) Coriander (FooDB: FOOD00061) Dandelion (FooDB: FOOD00181) Dill (FooDB: FOOD00013) Sorrel (FooDB: FOOD00164) Fennel (FooDB: FOOD00082) Garlic (FooDB: FOOD00008) Parsley (FooDB: FOOD00131) Rose hip (FooDB: FOOD00446) Turnip (FooDB: FOOD00036) Watercress (FooDB: FOOD00158) Anise (FooDB: FOOD00137) Sweet basil (FooDB: FOOD00119) Sweet bay (FooDB: FOOD00097) Fenugreek (FooDB: FOOD00186) Sweet marjoram (FooDB: FOOD00122) Common oregano (FooDB: FOOD00124) Rosemary (FooDB: FOOD00159) Common sage (FooDB: FOOD00165) Summer savory (FooDB: FOOD00167) Tarragon (FooDB: FOOD00019) Common thyme (FooDB: FOOD00183) Peppermint (FooDB: FOOD00113) Spearmint (FooDB: FOOD00112) Amaranth (FooDB: FOOD00288) Welsh onion (FooDB: FOOD00241) Lemon grass (FooDB: FOOD00070) Teff (FooDB: FOOD00489) Yellow pond-lily (FooDB: FOOD00834) Lovage (FooDB: FOOD00100) Purslane (FooDB: FOOD00142) Linden (FooDB: FOOD00184) Roselle (FooDB: FOOD00447) Soft-necked garlic (FooDB: FOOD00850) Angelica (FooDB: FOOD00001) Silver linden (FooDB: FOOD00003) Lemon verbena (FooDB: FOOD00010) Mugwort (FooDB: FOOD00020) Roman camomile (FooDB: FOOD00046) Hyssop (FooDB: FOOD00089) Mexican oregano (FooDB: FOOD00102) German camomile (FooDB: FOOD00107) Lemon balm (FooDB: FOOD00108) Mentha (FooDB: FOOD00109) Orange mint (FooDB: FOOD00110) Cornmint (FooDB: FOOD00111) Pot marjoram (FooDB: FOOD00123) Winter savory (FooDB: FOOD00168) Small-leaf linden (FooDB: FOOD00185) Common verbena (FooDB: FOOD00196) Chinese chives (FooDB: FOOD00216) Lemon thyme (FooDB: FOOD00238) Italian oregano (FooDB: FOOD00259) Pineappple sage (FooDB: FOOD00266) Dock (FooDB: FOOD00350) Fireweed (FooDB: FOOD00365) Tea leaf willow (FooDB: FOOD00506) Epazote (FooDB: FOOD00552) Sourdock (FooDB: FOOD00558) Spice Wild celery (FooDB: FOOD00015) Chervil (FooDB: FOOD00327) Cinnamon (FooDB: FOOD00572) Ginger (FooDB: FOOD00206) Horseradish (FooDB: FOOD00018) Nutmeg (FooDB: FOOD00118) Pepper (Spice) (FooDB: FOOD00139) Allspice (FooDB: FOOD00287) Caraway (FooDB: FOOD00043) Cardamom (FooDB: FOOD00074) Chinese cinnamon (FooDB: FOOD00050) Cloves (FooDB: FOOD00179) Cumin (FooDB: FOOD00067) White mustard (FooDB: FOOD00413) Opium poppy (FooDB: FOOD00438) Saffron (FooDB: FOOD00063) Turmeric (FooDB: FOOD00068) Vanilla (FooDB: FOOD00195) Capers (FooDB: FOOD00039) Ceylon cinnamon (FooDB: FOOD00051) Star anise (FooDB: FOOD00090) Ginseng (FooDB: FOOD00219) Wasabi (FooDB: FOOD00498) Oilseed crop Flaxseed (FooDB: FOOD00101) Cottonseed (FooDB: FOOD00341) Oil palm (FooDB: FOOD00591) Safflower (FooDB: FOOD00042) Sesame (FooDB: FOOD00170) Poppy (FooDB: FOOD00127) Sunflower (FooDB: FOOD00086) Oil-seed Camellia (FooDB: FOOD00776) Babassu palm (FooDB: FOOD00773) Shea tree (FooDB: FOOD00775) Cupuaçu (FooDB: FOOD00774) Ucuhuba (FooDB: FOOD00777) Canola (FooDB: FOOD00772) Borage (FooDB: FOOD00026) Evening primrose (FooDB: FOOD00120) Sago palm (FooDB: FOOD00593) Other seed Rowal (FooDB: FOOD00545) Breadnut tree seed (FooDB: FOOD00310) Chia (FooDB: FOOD00328) Lotus (FooDB: FOOD00401) Ginkgo nuts (FooDB: FOOD00367) Hedge mustard (FooDB: FOOD00475) Quinoa (FooDB: FOOD00441) Herbs and Spices (FooDB: FOOD00866) Nut Almond (FooDB: FOOD00148) Brazil nut (FooDB: FOOD00024) Cashew nut (FooDB: FOOD00011) Chestnut (FooDB: FOOD00045) Hazelnut (FooDB: FOOD00376) Peanut (FooDB: FOOD00016) Pecan nut (FooDB: FOOD00044) Pine nut (FooDB: FOOD00138) Pistachio (FooDB: FOOD00140) Walnut (FooDB: FOOD00608) Acorn (FooDB: FOOD00282) Beech nut (FooDB: FOOD00299) Butternut (FooDB: FOOD00316) Chinese chestnut (FooDB: FOOD00331) European chestnut (FooDB: FOOD00363) Hickory nut (FooDB: FOOD00377) Macadamia nut (FooDB: FOOD00525) Mixed nuts (FooDB: FOOD00771) Pili nut (FooDB: FOOD00432) Colorado pinyon (FooDB: FOOD00433) Black walnut (FooDB: FOOD00093) Common walnut (FooDB: FOOD00094) Japanese chestnut (FooDB: FOOD00385) Common hazelnut (FooDB: FOOD00062) Macadamia nut (M. tetraphylla) (FooDB: FOOD00225) Japanese walnut (FooDB: FOOD00240) Nuts (FooDB: FOOD00869) Fruit Pome Apple (FooDB: FOOD00105) Malus (Crab apple) (FooDB: FOOD00343) Pear (FooDB: FOOD00152) Quince (FooDB: FOOD00069) Asian pear (FooDB: FOOD00291) Medlar (FooDB: FOOD00114) Pomes (FooDB: FOOD00856) Drupe Apricot (FooDB: FOOD00144) Prunus (Cherry, Plum) (FooDB: FOOD00143) Nectarine (FooDB: FOOD00229) Peach (FooDB: FOOD00149) European plum (FooDB: FOOD00147) Sour cherry (FooDB: FOOD00146) Sweet cherry (FooDB: FOOD00145) Common chokecherry (FooDB: FOOD00562) Peach (var.) (FooDB: FOOD00230) Tropical fruit Banana (FooDB: FOOD00208) Star fruit (FooDB: FOOD00023) Cherimoya (FooDB: FOOD00326) Coconut (FooDB: FOOD00336) Guava (FooDB: FOOD00150) Kiwi (FooDB: FOOD00004) Kumquat (FooDB: FOOD00393) Loquat (FooDB: FOOD00076) Lichee (FooDB: FOOD00103) Mango (FooDB: FOOD00106) Papaya (FooDB: FOOD00041) Passion fruit (FooDB: FOOD00128) Persimmon (FooDB: FOOD00594) Pineapple (FooDB: FOOD00012) French plantain (FooDB: FOOD00436) Pomegranate (FooDB: FOOD00151) Prickly pear (FooDB: FOOD00440) Tamarind (FooDB: FOOD00180) Acerola (FooDB: FOOD00281) Breadfruit (FooDB: FOOD00309) Custard apple (FooDB: FOOD00014) Jackfruit (FooDB: FOOD00384) Mammee apple (FooDB: FOOD00405) Japanese persimmon (FooDB: FOOD00073) Sapodilla (FooDB: FOOD00458) Mamey sapote (FooDB: FOOD00459) Soursop (FooDB: FOOD00478) Sugar apple (FooDB: FOOD00485) Feijoa (FooDB: FOOD00544) Abiyuch (FooDB: FOOD00280) Nance (FooDB: FOOD00788) Naranjilla (FooDB: FOOD00789) Plains prickly pear (FooDB: FOOD00435) Wax apple (FooDB: FOOD00078) Longan (FooDB: FOOD00224) Rambutan (FooDB: FOOD00234) Natal plum (FooDB: FOOD00320) Durian (FooDB: FOOD00355) Java plum (FooDB: FOOD00386) Purple mangosteen (FooDB: FOOD00406) Common persimmon (FooDB: FOOD00429) Pitanga (FooDB: FOOD00434) Malabar plum (FooDB: FOOD00445) Berry Bilberry (FooDB: FOOD00193) Rubus (Blackberry, Raspberry) (FooDB: FOOD00160) Vaccinium (Blueberry, Cranberry, Huckleberry) (FooDB: FOOD00188) Blackcurrant (FooDB: FOOD00155) Redcurrant (FooDB: FOOD00156) Elderberry (FooDB: FOOD00358) Gooseberry (FooDB: FOOD00157) Grape (FooDB: FOOD00369) Lingonberry (FooDB: FOOD00194) Loganberry (FooDB: FOOD00400) Strawberry (FooDB: FOOD00083) Boysenberry (FooDB: FOOD00542) American cranberry (FooDB: FOOD00192) Common grape (FooDB: FOOD00204) Strawberry guava (FooDB: FOOD00482) Black mulberry (FooDB: FOOD00117) Red raspberry (FooDB: FOOD00162) Muscadine grape (FooDB: FOOD00203) Salmonberry (FooDB: FOOD00456) Alaska blueberry (FooDB: FOOD00380) Sea-buckthornberry (FooDB: FOOD00087) Black elderberry (FooDB: FOOD00166) Black crowberry (FooDB: FOOD00075) Black huckleberry (FooDB: FOOD00084) Mulberry (FooDB: FOOD00116) Black chokeberry (FooDB: FOOD00136) Cloudberry (FooDB: FOOD00161) Black raspberry (FooDB: FOOD00163) Rowanberry (FooDB: FOOD00176) Lowbush blueberry (FooDB: FOOD00189) Sparkleberry (FooDB: FOOD00190) Highbush blueberry (FooDB: FOOD00191) Arctic blackberry (FooDB: FOOD00207) Bayberry (FooDB: FOOD00209) Elliott's blueberry (FooDB: FOOD00210) Canada blueberry (FooDB: FOOD00211) Bog bilberry (FooDB: FOOD00212) Buffalo currant (FooDB: FOOD00213) European cranberry (FooDB: FOOD00217) Deerberry (FooDB: FOOD00218) Cascade huckleberry (FooDB: FOOD00220) Oval-leaf huckleberry (FooDB: FOOD00221) Evergreen huckleberry (FooDB: FOOD00222) Red huckleberry (FooDB: FOOD00223) Summer grape (FooDB: FOOD00227) Fox grape (FooDB: FOOD00228) Half-highbush blueberry (FooDB: FOOD00248) Jostaberry (FooDB: FOOD00257) Sweet rowanberry (FooDB: FOOD00265) Skunk currant (FooDB: FOOD00267) Squashberry (FooDB: FOOD00344) Ohelo berry (FooDB: FOOD00419) Chinese bayberry (FooDB: FOOD00852) Saskatoon berry (FooDB: FOOD00884) Nanking cherry (FooDB: FOOD00885) Other fruit Date (FooDB: FOOD00135) Fig (FooDB: FOOD00081) Jujube (FooDB: FOOD00388) Citrus Grapefruit (FooDB: FOOD00256) Lemon (FooDB: FOOD00054) Lime (FooDB: FOOD00053) Sweet orange (FooDB: FOOD00057) Mandarin orange (Clementine, Tangerine) (FooDB: FOOD00056) Persian lime (FooDB: FOOD00543) Pummelo (FooDB: FOOD00055) Grapefruit/Pummelo hybrid (FooDB: FOOD00255) Citrus (FooDB: FOOD00859) Fruits (FooDB: FOOD00871) Vegetable Shoot vegetable Globe artichoke (FooDB: FOOD00071) Asparagus (FooDB: FOOD00021) Bamboo shoots (FooDB: FOOD00297) Cardoon (FooDB: FOOD00319) American pokeweed (FooDB: FOOD00437) Fruit vegetable Eggplant (FooDB: FOOD00174) Avocado (FooDB: FOOD00130) Groundcherry (FooDB: FOOD00371) Olive (FooDB: FOOD00121) Pepper (FooDB: FOOD00040) Garden tomato (FooDB: FOOD00171) Mexican groundcherry (FooDB: FOOD00491) Green bell pepper (FooDB: FOOD00877) Yellow bell pepper (FooDB: FOOD00878) Red bell pepper (FooDB: FOOD00880) Italian sweet red pepper (FooDB: FOOD00881) Garden tomato (var.) (FooDB: FOOD00173) Cherry tomato (FooDB: FOOD00172) Pepper (C. baccatum) (FooDB: FOOD00231) Pepper (C. chinense) (FooDB: FOOD00232) Pepper (Capsicum) (FooDB: FOOD00233) Pepper (C. frutescens) (FooDB: FOOD00428) Pepper (C. pubescens) (FooDB: FOOD00849) Orange bell pepper (FooDB: FOOD00879) Root vegetable Red beetroot (FooDB: FOOD00264) Carrot (FooDB: FOOD00245) Celeriac (FooDB: FOOD00214) Chicory (FooDB: FOOD00049) Kohlrabi (FooDB: FOOD00033) Rape (FooDB: FOOD00029) Parsnip (FooDB: FOOD00129) Radish (FooDB: FOOD00153) Daikon radish (FooDB: FOOD00261) Black salsify (FooDB: FOOD00599) Swede (FooDB: FOOD00028) Thistle (FooDB: FOOD00606) Burdock (FooDB: FOOD00017) Taro (FooDB: FOOD00488) Common salsify (FooDB: FOOD00457) Jicama (FooDB: FOOD00509) Wild carrot (FooDB: FOOD00072) Prairie turnip (FooDB: FOOD00439) Chicory roots (FooDB: FOOD00254) Black radish (FooDB: FOOD00262) Radish (var.) (FooDB: FOOD00263) Oregon yampah (FooDB: FOOD00361) Alpine sweetvetch (FooDB: FOOD00407) Root vegetables (FooDB: FOOD00873) Cabbage Broccoli (FooDB: FOOD00034) Brussel sprouts (FooDB: FOOD00032) Chinese cabbage (FooDB: FOOD00035) Pak choy (FooDB: FOOD00252) Common cabbage (FooDB: FOOD00030) Savoy cabbage (FooDB: FOOD00002) Cauliflower (FooDB: FOOD00031) Kale (FooDB: FOOD00390) Rapini (FooDB: FOOD00311) Napa cabbage (FooDB: FOOD00253) Black cabbage (FooDB: FOOD00247) Chinese mustard (FooDB: FOOD00027) Mustard spinach (FooDB: FOOD00414) Chinese broccoli (FooDB: FOOD00330) White cabbage (FooDB: FOOD00887) Tronchuda cabbage (FooDB: FOOD00239) Komatsuna (FooDB: FOOD00251) Kai-lan (FooDB: FOOD00258) Oxheart cabbage (FooDB: FOOD00260) Cabbage (FooDB: FOOD00851) Leaf vegetable Lettuce (FooDB: FOOD00095) Swiss chard (FooDB: FOOD00237) Garden cress (FooDB: FOOD00099) Endive (FooDB: FOOD00048) Spinach (FooDB: FOOD00178) Common beet (FooDB: FOOD00025) Garland chrysanthemum (FooDB: FOOD00333) Jute (FooDB: FOOD00389) Lambsquarters (FooDB: FOOD00394) New Zealand spinach (FooDB: FOOD00415) Swamp cabbage (FooDB: FOOD00091) Rocket salad (ssp.) (FooDB: FOOD00077) Yautia (FooDB: FOOD00510) Romaine lettuce (FooDB: FOOD00888) Rocket salad (FooDB: FOOD00244) Chicory leaves (FooDB: FOOD00250) Corn salad (FooDB: FOOD00340) Malabar spinach (FooDB: FOOD00404) Ostrich fern (FooDB: FOOD00556) Green vegetables (FooDB: FOOD00872) Mushroom Chanterelle (FooDB: FOOD00569) Common mushroom (FooDB: FOOD00547) Shiitake (FooDB: FOOD00548) Enokitake (FooDB: FOOD00551) Oyster mushroom (FooDB: FOOD00553) Maitake (FooDB: FOOD00555) Jew's ear (FooDB: FOOD00546) Cloud ear fungus (FooDB: FOOD00554) Tuber Cassava (FooDB: FOOD00323) Jerusalem artichoke (FooDB: FOOD00387) Potato (FooDB: FOOD00175) Sweet potato (FooDB: FOOD00092) Yam (FooDB: FOOD00508) Mountain yam (FooDB: FOOD00411) Arrowroot (FooDB: FOOD00290) Arrowhead (FooDB: FOOD00289) Onion-family vegetable Leek (FooDB: FOOD00007) Allium (FooDB: FOOD00005) Wild leek (FooDB: FOOD00396) Shallot (FooDB: FOOD00243) Garden onion (FooDB: FOOD00006) Garden onion (var.) (FooDB: FOOD00226) Onion-family vegetables (FooDB: FOOD00855) Green onion (FooDB: FOOD00963) Red onion (FooDB: FOOD00962) Other vegetable Okra (FooDB: FOOD00420) Horseradish tree (FooDB: FOOD00379) Sacred lotus (FooDB: FOOD00402) Tree fern (FooDB: FOOD00797) Chinese water chestnut (FooDB: FOOD00332) Nopal (FooDB: FOOD00416) Carob (FooDB: FOOD00321) Agave (FooDB: FOOD00563) Narrowleaf cattail (FooDB: FOOD00564) Giant butterbur (FooDB: FOOD00314) Sesbania flower (FooDB: FOOD00469) Stalk vegetable Garden rhubarb (FooDB: FOOD00154) Celery stalks (FooDB: FOOD00215) Alaska wild rhubarb (FooDB: FOOD00538) Brassica Brassicas (FooDB: FOOD00857) Cereal and cereal product Other bread Other bread (FooDB: FOOD00269) Cereal Barley (FooDB: FOOD00088) Common buckwheat (FooDB: FOOD00079) Corn (FooDB: FOOD00205) Millet (FooDB: FOOD00126) Oat (FooDB: FOOD00022) Rice (FooDB: FOOD00125) Rye (FooDB: FOOD00169) Wheat (FooDB: FOOD00561) Sorghum (FooDB: FOOD00177) Triticale (FooDB: FOOD00246) Common wheat (FooDB: FOOD00187) Hard wheat (FooDB: FOOD00242) Wild rice (FooDB: FOOD00505) Oriental wheat (FooDB: FOOD00539) Spelt (FooDB: FOOD00479) Tartary buckwheat (FooDB: FOOD00080) Red rice (FooDB: FOOD00235) Annual wild rice (FooDB: FOOD00236) Cereal product Biscuit (FooDB: FOOD00274) Breakfast cereal (FooDB: FOOD00270) Pasta (FooDB: FOOD00273) Other cereal product (FooDB: FOOD00272) Dough Sourdough (FooDB: FOOD00275) Cereals and cereal products (FooDB: FOOD00858) Pulse Bean Common bean (FooDB: FOOD00134) Mung bean (FooDB: FOOD00200) Adzuki bean (FooDB: FOOD00198) Lima bean (FooDB: FOOD00133) Bean (FooDB: FOOD00621) Broad bean (FooDB: FOOD00197) Hyacinth bean (FooDB: FOOD00381) Winged bean (FooDB: FOOD00507) Moth bean (FooDB: FOOD00410) Gram bean (FooDB: FOOD00199) Yellow wax bean (FooDB: FOOD00882) Green bean (FooDB: FOOD00883) Scarlet bean (FooDB: FOOD00132) Climbing bean (FooDB: FOOD00201) Lentil Lentils (FooDB: FOOD00098) Pea Chickpea (FooDB: FOOD00047) Common pea (FooDB: FOOD00141) Black-eyed pea (FooDB: FOOD00523) Cowpea (FooDB: FOOD00202) Yardlong bean (FooDB: FOOD00540) Pigeon pea (FooDB: FOOD00037) Catjang pea (FooDB: FOOD00342) Grass pea (FooDB: FOOD00096) Other pulse White lupine (FooDB: FOOD00403) Lupine (FooDB: FOOD00104) Pulses (FooDB: FOOD00867) Soy Soy bean (FooDB: FOOD00085) Soy product Other soy product (FooDB: FOOD00271) Aquatic origin Fish Burbot (FooDB: FOOD00313) American butterfish (FooDB: FOOD00315) Atlantic herring (FooDB: FOOD00292) Devilfish (FooDB: FOOD00349) Seaweed Red algae (FooDB: FOOD00601) Kombu (FooDB: FOOD00602) Agar (FooDB: FOOD00284) Irish moss (FooDB: FOOD00382) Kelp (FooDB: FOOD00391) Purple laver (FooDB: FOOD00549) Spirulina (FooDB: FOOD00480) Wakame (FooDB: FOOD00550) Mollusk Abalone (FooDB: FOOD00279) Conch (FooDB: FOOD00611) Gourd Chayote (FooDB: FOOD00325) Cucumber (FooDB: FOOD00065) Muskmelon (FooDB: FOOD00064) Cucurbita (FooDB: FOOD00066) Watermelon (FooDB: FOOD00052) Bitter gourd (FooDB: FOOD00115) Calabash (FooDB: FOOD00318) Towel gourd (FooDB: FOOD00492) Winter squash (FooDB: FOOD00283) Butternut squash (FooDB: FOOD00317) Wax gourd (FooDB: FOOD00499) Green zucchini (FooDB: FOOD00875) Yellow zucchini (FooDB: FOOD00876) Japanese pumpkin (FooDB: FOOD00886) Sunburst squash (pattypan squash) (FooDB: FOOD00874) Tinda (FooDB: FOOD00559) Horned melon (FooDB: FOOD00761) Tea Tea (FooDB: FOOD00038) Black tea (FooDB: FOOD00907) Green tea (FooDB: FOOD00908) Herbal tea (FooDB: FOOD00989) Red tea (FooDB: FOOD00925) Herbal tea Greenthread tea (FooDB: FOOD00820) Cocoa and cocoa product Cocoa Cocoa bean (FooDB: FOOD00182)
Process	Not Available
Role	Not Available
Physical Properties
Predicted Properties	Not Available
External Links
External Links	Not Available
References
Synthesis Reference	Not Available

Showing chemical card for pheophorbide b (CFc000337951)

MOL for CFc000337951 (pheophorbide b)

3D MOL for CFc000337951 (pheophorbide b)

3D SDF for CFc000337951 (pheophorbide b)

3D-SDF for CFc000337951 (pheophorbide b)

PDB for CFc000337951 (pheophorbide b)

3D PDB for CFc000337951 (pheophorbide b)

SMILES for CFc000337951 (pheophorbide b)

INCHI for CFc000337951 (pheophorbide b)

Structure for CFc000337951 (pheophorbide b)

3D Structure for CFc000337951 (pheophorbide b)