Ojima:HC100913p

General Index

All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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MassBank	[1]
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Top 10 Similar Molecules of

Ranking	About scoring
T041+ Score:6.63	The similarity score between two molecules is defined as the sum of Shannon entropy of ionic formulas shared by the molecules: $\textstyle - \sum_{p\in shared} \log(\mbox{frequency}(p))$ 代謝物間の類似度スコアは、それらのスペクトルで共有される（アノテートされた）イオン式のシャノン情報量の総和です。

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Pages Related to Peak C20H22NO4:   T041+

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Precursor-Product Relationship

About the PP Table (行列表示について)
The matrix is viewed columnwise. The topmost precursor ion in bold face produces the product ions beneath it. Each formula in matrix cells corresponds to the neutral loss. Blackout cells indicate products that cannot be derived, and orange cells indicate a structurally plausible link produced by cleaving a single chemical bond (in cases of ring-opening, two bonds).	行列は列方向に見ます。最上段太字の前駆イオン(precursor ion)が直下の生成イオン群(product ions)になると解釈します。 行列要素に書かれている組成式はニュートラルロスです。黒は前駆イオンから生成しえない関係、オレンジは分子構造における共有結合1本の切断（開環の場合は2本）で生じる関係を意味します。

HC100913p	340 C20H22NO4	325 C19H19NO4	324 C19H18NO4	202 C12H12NO2	171 C11H9NO
340 C20H22NO4
325 C19H19NO4	CH3
324 C19H18NO4	CH4	H
202 C12H12NO2	C8H10O2	C7H7O2	C7H6O2
171 C11H9NO	C9H13O3	C8H10O3	C8H9O3	CH3O

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