543365

IR-820

Dye content 80 %

• Synonym(s): 2-[2-[2-Chloro-3-[[1,3-dihydro-1,1-dimethyl-3-(4-sulfobutyl)-2H-benzo[e]indol-2-ylidene]-ethylidene]-1-cyclohexen-1-yl]-ethenyl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-benzo[e]indolium hydroxide inner salt, sodium salt, New Indocyanine Green
• Empirical Formula (Hill Notation): C₄₆H₅₀ClN₂NaO₆S₂
• CAS Number: 172616-80-7
• Molecular Weight: 849.47
• MDL number: MFCD04038859
• UNSPSC Code: 12352103
• PubChem Substance ID: 57651466
• NACRES: NA.23

Properties

• composition: Dye content, 80%
• mp: >300 °C (lit.)
• λmax: 820 nm
• SMILES string: [Na+].CC1(C)\C(=C\C=C2/CCCC(\C=C\C3=[N+](CCCCS([O-])(=O)=O)c4ccc5ccccc5c4C3(C)C)=C2Cl)N(CCCCS([O-])(=O)=O)c6ccc7ccccc7c16
• InChI: 1S/C46H51ClN2O6S2.Na/c1-45(2)40(48(28-9-11-30-56(50,51)52)38-24-20-32-14-5-7-18-36(32)42(38)45)26-22-34-16-13-17-35(44(34)47)23-27-41-46(3,4)43-37-19-8-6-15-33(37)21-25-39(43)49(41)29-10-12-31-57(53,54)55;/h5-8,14-15,18-27H,9-13,16-17,28-31H2,1-4H3,(H-,50,51,52,53,54,55);/q;+1/p-1
• InChI key: RANIQVAJHXBIAY-UHFFFAOYSA-M

Description

General description

IR-820 is an indocyanine dye, which has a broad absorption band at 690 nm in aqueous solution. It is a near infrared dye (NIR) with a molar absorptivity of 72 x 10⁴ dm³mol⁻¹cm⁻¹.

Application

IR-820 is a cost-effective imaging agent with low cytotoxicity. It can be used for image guided photothermal therapy for the treatment of cancer. It is also used as a contrasting agent for the detection and quantification of infected tissues in animals.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves