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09969 Sigma

SQ-NHS

suitable for fluorescence, >50% (coupling to amines)

Synonym: Squarain-carboxylate N-succinimidyl ester

  • CAS Number 154161-81-6

  • Empirical Formula (Hill Notation) C34H32ClN3O6

  • Molecular Weight 614.09

  •  MDL number MFCD03792601

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Description

Application

SQ-NHS contains a reactive N-hydroxysuccinimide group, which allows for coupling with amino groups. When conjugated with proteins, SQ-NHS demonstrates a high quantum yield with an absorption maximum at 640 nm and a nanosecond lifetime. Additionally, in the physiological pH range (6-9), the absorbance, emission, and lifetime of SQ-NHS are pH-independent. It is water insoluble .

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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles
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