DATASHEET
Formulation
Powder
Storage:
Stable for 2 years after receipt when stored at -20°C.
Product Information:
CAS Number: 148356-01-8
Molecular formula: C31H26N2O10
Molecular weight: 586.55
Purity: >95% (HPLC)
Appearance: Yellow powder.
Solubility: Soluble in DMSO, DMF or methanol.
InChiKey: LTNYRCVGLBVMPJ-UHFFFAOYSA-N
SMILES: OC1=CC2=C(C(C3=CC=CC(C(NCCCCCC(ON4C(CCC4=O)=O)=O)=O)=C3C(O)=O)=C(C=C5)C(O2)=CC5=O)C=C1
SMILES: OC1=CC2=C(C=C1)C1(OC(=O)C3=C1C=C(C=C3)C(=O)NCCCCCC(=O)ON1C(=O)CCC1=O)C1=CC=C(O)C=C1O2
Description:
Amine-reactive fluorescent probe for introducing a fluorescein label at a nucleophilic residue of a target molecule. This fluorescein labeling reagent has an added (X) spacer to improve accessibility of the reactive group by nucleophiles in preparation of bioconjugates. The reactive N-hydroxysuccinimide (NHS) group can be used for easy attachment to proteins or amine containing nucleotides using simple procedures. Spectral properties: lambdaex 490nm; lambdaem 514nm in DMF (pH 8.2) and lambdaex 491nm; lambdaem 515nm in 0.1 M Tris pH 9.0.