2-Nitrobenzaldehyde semicarbazone 13C, 15N2 27709 or -20 C for long

or -20 C for long term (months)

Oleanolic acid derivative 1 is an oleanolic acid derivative

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CC1(C)/C(=C/C=C/C=C/C2=[N+](C)C3=CC=CC=C3C2(C)C)/N(CCOCCOCCOCCOCC#C)C2=CC=CC=C12

2-Nitrobenzaldehyde semicarbazone 13C, 15N2 27709 or -20 C for long2 Nitrobenzaldehyde semicarbazone 13C,15N2 is used for analysis of semicarbazide in the LC MS MS method. Product information CAS Number: 760179 80 4 Molecular Weight: 211. 15 Formula: C8H8N4O3 Chemical Name: [(E) {[2 (N)nitrophenyl](C)methylidene}amino]urea Smiles: NC(=O)N [15N]=[13CH] C1=CC=CC=C1[15N+]([O ])=O InChiKey: OEOKLBSECDAYSM AOILIYQHSA N InChi: InChI=1S C8H8N4O3 c9 8(13)11 10 5 6 3 1 2 4 7(6)12(14)15 h1 5H,(H3,9,11,13) b10 5+ i5+1,10+1,12+1