MassBank:KOX00018p

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All Molecules KOX PR PBX COX

Ion Frequency

Prec.-Product

Neutral Loss

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b-Ala

IDs and Links
MassBank	b-Ala
CAS	107-95-9
Keio ID	A021+

Top 10 Similar Molecules of b-Ala

Ranking	About scoring
KOX00010p Score:14.13 KOX00008p Score:14.13 KOX00518p Score:10.38 KOX00642p Score:9.28 KOX00223p Score:9.28 KOX00683p Score:8.99 KOX00663p Score:8.99 KOX00499p Score:8.99 KOX00083p Score:8.99 KOX00905p Score:5.25	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

Page list for each fragment

Pages Related to Peak C3H8NO2:   KOX00008p  KOX00010p  KOX00083p  KOX00499p  KOX00560p  KOX00662p  KOX00663p  KOX00683p  KOX00737p  KOX00843p  KOX00903p   Pages Related to Peak C3H5O2:   KOX00008p  KOX00010p  KOX00140p  KOX00223p  KOX00518p  KOX00588p  KOX00642p  KOX00799p   Pages Related to Peak C3H6NO:   KOX00008p  KOX00010p  KOX00083p  KOX00147p  KOX00167p  KOX00223p  KOX00225p  KOX00288p  KOX00292p  KOX00499p  KOX00641p  KOX00642p  KOX00654p  KOX00663p  KOX00683p  KOX00718p  KOX00739p  KOX00740p  KOX00772p  KOX00794p  KOX00815p  KOX00852p  KOX00868p   Pages Related to Peak C2H5O2:   KOX00048p  KOX00447p  KOX00518p  KOX00573p  KOX00712p  KOX00774p  KOX00905p

Annotations

Precursor	Product	Comments
C3H8NO2 (90)	C3H5O2 (73)	a
C3H8NO2 (90)	C3H6NO (72)	b
C3H8NO2 (90)	C2H5O2 (61)	c

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。

KOX00018p	90 C3H8NO2	73 C3H5O2	72 C3H6NO	61 C2H5O2
90 C3H8NO2
73 C3H5O2	H3N
72 C3H6NO	H2O
61 C2H5O2	CH3N	C

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