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Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
CN

Specification Sheet

Product Name
Atto 590 NHS ester BioReagent, suitable for fluorescence, ≥90.0% (degree of coupling)
Product Number
79636
Product Brand
SIGMA
CAS Number
670269-33-7
Molecular Weight
788.24

Test

Specification

APPEARANCE (COLOR)Dark Green
APPEARANCE (FORM)Powder
PURITY (HPLC AREA %)≥ 90.0 %
Absorption Max597 - 603 nm
SOLVENT (UV)ethanol with 0,1% trifluoroacetic acid
DEGREE OF COUPLING≥ 90.0 %
RECOMMENDED RETEST PERIOD28 MONTHS