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ICG acid

Indocyanine green (ICG) is a cyanine dye used in medical diagnostics. It is used for determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography. It has a peak spectral absorption close to 800 nm. These infrared frequencies penetrate retinal layers, allowing ICG angiography to image deeper patterns of circulation than fluorescein angiography. This ICG acid can be used to modify the molecules that contain an amino group.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of ICG acid to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM118.346 µL591.73 µL1.183 mL5.917 mL11.835 mL
5 mM23.669 µL118.346 µL236.692 µL1.183 mL2.367 mL
10 mM11.835 µL59.173 µL118.346 µL591.73 µL1.183 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles
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Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (280 nm)Correction Factor (260 nm)
ICG-ATT [3-ICG-acyl-1,3-thiazolidine-2-thione]7898132300000.076-
ICG-OSu7898132300000.076-
Cy3NS acid *CAS 1032678-01-5*55556915000010.0730.07
Cy5NS acid65167025000010.030.02
Cy7NS acid7567792500000.0360.05
AMCA acid *CAS#: 106562-32-7*346434190000.153-
EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid] *CAS 50402-56-7*33645559000.107-
EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid]33645559000.107-
DABCYL acid [4-((4-(Dimethylamino)phenyl)azo)benzoic acid] *CAS 6268-49-1*---0.516-
BCECF acid *CAS#: 85138-49-4*50452790000--
XFD532 acid *Same Structure to Alexa Fluor™ 532 acid*534553810000.090.24
XFD488 acid *Same Structure to Alexa Fluor™ 488 acid*499520710000.110.30
Cy3B acid56057112000010.0690.048
XFD350 acid *Same Structure to Alexa Fluor™ 350 acid*343441190000.190.25
XFD546 acid *Same Structure to Alexa Fluor™ 546 acid*5615721120000.120.21
XFD568 acid *Same Structure to Alexa Fluor™ 568 acid*579603913000.460.45
XFD514 acid518543800000.180.31
QXY7 acid [equivalent to QSY-7 acid]--9000010.22-
XFD555 acid5535681550000.080.08
XFD647 acid6506712700000.03-
XFD750 acid7527762900000.04-
XFD700 acid6967192050000.07-
ICG-Osu *UltraPure Grade*7898132300000.076-
OG514 acid [equivalent to Oregon Green® 514 carboxylic acid]513533850000.19-
XFD405 acid40142135,0000.700.23
XFD430 acid43254015,0000.28-
XFD594 acid590618900000.560.43
XFD610 acid611629144,0000.440.43
XFD633 acid632650159,0000.55-
XFD660 acid6636911320000.100.00
Show More (21)

Citations

View all 5 citations: Citation Explorer
Comparison of Near-Infrared Imaging Agents Targeting the PTPmu Tumor Biomarker
Authors: Johansen, Mette L and Vincent, Jason and Rose, Marissa and Sloan, Andrew E and Brady-Kalnay, Susann M
Journal: Molecular Imaging and Biology (2023): 1--14
Assessment of Lexiscan for Blood Brain Barrier disruption to facilitate Fluorescence brain imaging
Authors: Pak, Rebecca W and Le, Hanh and Valentine, Heather and Thorek, Daniel and Rahmim, Arman and Wong, Dean and Kang, Jin U
Journal: (2017): ATu3B--2
Bioengineering of injectable encapsulated aggregates of pluripotent stem cells for therapy of myocardial infarction
Authors: Zhao, Shuting and Xu, Zhaobin and Wang, Hai and Reese, Benjamin E and Gushchina, Liubov V and Jiang, Meng and Agarwal, Pranay and Xu, Jiangsheng and Zhang, Mingjun and Shen, Rulong and others, undefined
Journal: Nature Communications (2016): 13306
Single-Layer MoS2 Nanosheets with Amplified Photoacoustic Effect for Highly Sensitive Photoacoustic Imaging of Orthotopic Brain Tumors
Authors: Chen, Jingqin and Liu, Chengbo and Hu, Dehong and Wang, Feng and Wu, Haiwei and Gong, Xiaojing and Liu, Xin and Song, Liang and Sheng, Zonghai and Zheng, Hairong
Journal: Advanced Functional Materials (2016)
Deep Photoacoustic/Luminescence/Magnetic Resonance Multimodal Imaging in Living Subjects Using High-Efficiency Upconversion Nanocomposites
Authors: Liu, Yu and Kang, Ning and Lv, Jing and Zhou, Zijian and Zhao, Qingliang and Ma, Lingceng and Chen, Zhong and Ren, Lei and Nie, Liming
Journal: Advanced Materials (2016)

References

View all 193 references: Citation Explorer
Sentinel lymph node biopsy using intraoperative indocyanine green fluorescence imaging navigated with preoperative CT lymphography for superficial esophageal cancer
Authors: Yuasa Y, Seike J, Yoshida T, Takechi H, Yamai H, Yamamoto Y, Furukita Y, Goto M, Minato T, Nishino T, Inoue S, Fujiwara S, Tangoku A.
Journal: Ann Surg Oncol (2012): 486
Indocyanine green angiography-guided photodynamic therapy for treatment of chronic central serous chorioretinopathy: a pilot study
Authors: Yannuzzi LA, Slakter JS, Gross NE, Spaide RF, Costa DL, Huang SJ, Klancnik JM, Jr., Aizman A.
Journal: Retina (2012): 288
Using indocyanine green fluorescent lymphography and lymphatic-venous anastomosis for cancer-related lymphedema
Authors: Mihara M, Murai N, Hayashi Y, Hara H, Iida T, Narushima M, Todokoro T, Uchida G, Yamamoto T, Koshima I.
Journal: Ann Vasc Surg (2012): 278 e1
Management of peripheral polypoidal choroidal vasculopathy with intravitreal bevacizumab and indocyanine green angiography-guided laser photocoagulation
Authors: Rishi P, Das A, Sarate P, Rishi E.
Journal: Indian J Ophthalmol (2012): 60
Synthesis and characterization of bovine serum albumin-coated nanocapsules loaded with indocyanine green as potential multifunctional nanoconstructs
Authors: Jung B, Anvari B.
Journal: Biotechnol Prog (2012): 533
Page updated on December 17, 2024

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Physical properties

Molecular weight

844.98

Solvent

DMSO

Spectral properties

Correction Factor (280 nm)

0.076

Extinction coefficient (cm -1 M -1)

230000

Excitation (nm)

789

Emission (nm)

813

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501
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