Ojima:PR101006n

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All Molecules KOX PR PBX COX

Ion Frequency

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Neutral Loss

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Prostaglandin E1

IDs and Links
MassBank	Prostaglandin E1
CAS	745-65-3
Keio ID

Top 10 Similar Molecules of Prostaglandin E1

Ranking	About scoring
G075+ Score:6.64	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 C20H29O3:   G075+

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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。

PR101006n	353 C20H33O5	335 C20H31O4	317 C20H29O3	273 C19H29O	235 C14H19O3	191 C13H19O	113 C7H13O
353 C20H33O5
335 C20H31O4	H2O
317 C20H29O3	H4O2	H2O
273 C19H29O	CH4O4	CH2O3	CO2
235 C14H19O3	C6H14O2	C6H12O	C6H10
191 C13H19O	C7H14O4	C7H12O3	C7H10O2	C6H10	CO2
113 C7H13O	C13H20O4	C13H18O3	C13H16O2	C12H16	C7H6O2	C6H6

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