WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 574090


Description: ICAAc is a solvatochromic fluorescent pH probe. As the polarity of the solvent increases, the emission wavelength of ICAAc increases. It displays excitation/emission maxima of 466/553, 431/515, and 418/503 nm in water, dioxane, and hexane, respectively. The absorption maximum of ICAAc decreases with increasing pH. It displays absorption/emission maxima of 470/554 and 428/553 nm at pH 3 and 11, respectively, in aqueous Britton-Robinson buffer, and the fluorescence intensity increases as pH decreases. ICAAc can be used for live cell applications.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 574090
Name: ICAAc
Chemical Formula: C14H9N3
Exact Mass: 219.0796
Molecular Weight: 219.25
Elemental Analysis: C, 76.70; H, 4.14; N, 19.17

Price and Availability

Size Price Availability Quantity
5.0mg USD 240.0 2 Weeks
10.0mg USD 385.0 2 Weeks
25.0mg USD 650.0 2 Weeks
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Synonym: 3-amino-6-Isocyanoacridine, ICAAc

IUPAC/Chemical Name: 6-isocyanoacridin-3-amine


InChi Code: InChI=1S/C14H9N3/c1-16-12-5-3-10-6-9-2-4-11(15)7-13(9)17-14(10)8-12/h2-8H,15H2

SMILES Code: NC1=CC2=C(C=C1)C=C3C(C=C(C=C3)[N+]#[C-])=N2

Appearance: A crystalline solid

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, water, dioxane, and hexane

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO, water, dioxane, or hexane

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 219.25 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

Molarity Calculator

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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

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Dilution Calculator

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1. Nagy, M., Racz, D., Nagy, Z.L., et al. Amino-isocyanoacridines: Novel, tunable solvatochromic fluorophores as phystiological pH probes. Sci. Rep. 9, 8250 (2019).


5.0mg / USD 240.0

Additional Information

Emission: abs/em = 470/554 and 428/553 nm at pH 3 and 11, respectively, in aqueous buffer
Excitation: 466/553, 431/515, and 418/503 nm in water, dioxane, and hexane, respectively