Ojima:PR100310p

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All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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D-Ala-D-ala

IDs and Links
MassBank	D-Ala-D-ala
CAS	923-16-0
Keio ID

Top 10 Similar Molecules of D-Ala-D-ala

[show] Ranking	About scoring
A155+ Score:16.13 D173+ Score:11.36 P105+ Score:5.13 O005+ Score:5.13 O003+ Score:5.13 G117+ Score:5.13 C013+ Score:5.13 A032+ Score:5.13 P084+ Score:4.76 G039+ Score:4.76	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。

Links

[show] Page list for each fragment
Pages Related to Peak C6H13N2O3:   D173+  A155+   Pages Related to Peak C5H11N2O:   A032+  C013+  D173+  G117+  O003+  O005+  P105+  A155+   Pages Related to Peak C3H8NO2:   A011+  A015+  A021+  A138+  P032+  S014+  A194+  A197+  C008+  G039+  P084+  A155+

Annotations

Precursor	Product	Comments
(0)	(0)	KOX00903

Precursor-Product Relationship

[show] 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。

[hide] PR100310p	161 C6H13N2O3	115 C5H11N2O	90 C3H8NO2
161 C6H13N2O3
115 C5H11N2O	CH2O2
90 C3H8NO2	C3H5NO

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