Nacres: 647 maleimide
Grouped product items
SKU Pack Size Availability Price Quantity
SCJ4600047-1UMOL - Available to ship on December 30, 2023
IDR 5,131,000.00
Request a Bulk Order Check Availability


Epsilon extinction coefficient 240000 at 650 
Lambda max nm
absorption A280/650 
absorption range measuring range nm 0.03
astm d 2162
astm d 301-56 90% (TLC)
Description CF647 MALEIMIDE
free fatty acid content2 solid
foreign activity λ
form ex 
format 633 635 or 640 
fragrance allergen nm (Flow cytometry laser line)
MDM Code SCJ4600047-1UMOL
Material Number SCJ4600047
Business Unit 696
Shipping Mode COU
Local HS Code 32049000
Legacy SIGMA
Plant 6311
Sales Org 6304



Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Features and Benefits

1. Has comparable brightness and photostability as Cy®


5 and Alexa Fluor®

Formula variant

647. 2. Highly water-soluble. 3. pH-insensitive.


647 is a cyanine-based far-red fluorescent dye spectrally similar to Cy®

Other Notes

5 and Alexa Fluor®


647. CF

Physical form

647 also has comparable brightness and photostability as Cy®

Physical properties

5 and Alexa Fluor®

Preparation Note



This product is distributed by Sigma-Aldrich Co. under the authorization of Biotium, Inc. This product is covered by one or more US patents and corresponding patent claims outside the US patents or pending applications owned or licensed by Biotium, Inc. including without limitation: 12/334,387; 12/607,915; 12/699,778; 12/850,578; 61/454,484. In consideration of the purchase price paid by the buyer, the buyer is hereby granted a limited, non-exclusive, non-transferable license to use only the purchased amount of the product solely for the buyer’s own internal research in a manner consistent with the accompanying product literature. Except as expressly granted herein, the sale of this product does not grant to or convey upon the buyer any license, expressly, by implication or estoppel, under any patent right or other intellectual property right of Biotium, Inc. Buyer shall not resell or transfer this product to any third party, or use the product for any commercial purposes, including without limitation, any diagnostic, therapeutic or prophylactic uses. This product is for research use only. Any other uses, including diagnostic uses, require a separate license from Biotium, Inc. For information on purchasing a license to use this product for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email:

Serological Profile

Protect from light


Dissolve in DMSO


Signal Word


WGK Germany


Flash Point (F)

Not applicable

Flash Point (C)

Not applicable

Target Organs

Risk Statement

Supplemental Hazard Statements


Certificate of Analysis View Sample COA
Certificate of Origin


Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.