(Cited from:https://baike.baidu.com/item/%E5%8D%9F%E5%95%89)

Most of the Chinese translations of porphyrin (s) are translated as "卟啉". Is there any other evidence that is translated as "(口+小) 啉"? In addition, the character "小" has no pronunciation of “Pu”.

I agree completely with Conifer Tseng that the proposed character should be an error for 卟, so suggest postponing pending additional evidence that ⿰口小 is the correct glyph form.

Reasonable doubt, withdraw it.

Per the Version 2.0 comments, this character should have been either postponed or withdrawn.

According to zi.tools this has a V source F0A90.

from http://www.nomfoundation.org/nom-tools/Taberd-Dictionary?p=radical&stroke=3&nom=%E5%8F%A3&strokes=3&view=784&uiLang=en

As Taberd shows, this character is used in the compound, "tục tiũ", meaning "obscene". Note, in modern standard orthography, it is written "tĩu" with the tone mark over the nuclear vowel: “i”, not over the glide "u".

Since this a valid, documented character, which Vietnam would propose for the next working set, in the interest of saving time and effort it would be best to keep this in the current working set.