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Table 1 Structure identifications of the most significant mass present in MeOHGCM6 extract using LC/MS

From: Anti-inflammatory, gastroprotective and anti-ulcerogenic effects of red algae Gracilaria changii (Gracilariales, Rhodophyta) extract

Mass (ion)

Found in batch

Possible ID

417.298

1, 2

Most likely contaminant

457.405*

1, 2

Unidentified

461.326

1, 2

Most likely contaminant

505.353

1, 2

Most likely contaminant

573.256

1, 2

Unidentified

645.280

1, 2

Methyl 10-hydroxyphaeophorbide a

743.636

1, 2

Unidentified

887.579

1, 2

10-Hydroxypheophytin a

  1. Dictionary of Natural Products, CRC Press with high resolution MS spectra were used to analyse the total positive ion spectra for the identification of possible chemical constituents.
  2. * MS/MS (relative intensities%) 457.405 → 398.327 (100%), 380.316 (50%), 158.082 (40%).