FBA 185 | CAS#2866-43-5 | Fluorescent brightener dye

MedKoo Cat#: 464251 | Name: FBA 185

Description:

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

FBA 185 is a fluorescent brightener dye.

Chemical Structure

FBA 185

CAS#2866-43-5

Theoretical Analysis

MedKoo Cat#: 464251

Name: FBA 185

CAS#: 2866-43-5

Chemical Formula: C18H10N2O2S

Exact Mass: 318.0463

Molecular Weight: 318.35

Elemental Analysis: C, 67.91; H, 3.17; N, 8.80; O, 10.05; S, 10.07

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.

Bulk Inquiry

Related CAS #

No Data

Synonym

FBA 185; FBA185; FBA-185; SOF;

IUPAC/Chemical Name

2,5-bis(benzo[d]oxazol-2-yl)thiophene

InChi Key

UGFSLKRMHPGLFU-UHFFFAOYSA-N

InChi Code

InChI=1S/C18H10N2O2S/c1-3-7-13-11(5-1)19-17(21-13)15-9-10-16(23-15)18-20-12-6-2-4-8-14(12)22-18/h1-10H

SMILES Code

c1(c2sc(c(o3)nc4c3cccc4)cc2)nc(cccc5)c5o1

Appearance

Solid powder

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

To be determined

Shelf Life

>2 years if stored properly

Drug Formulation

To be determined

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

More Info

Instruction

View handling instruction

	Solvent	mg/mL	mM
Solubility
	To be determined	0.0	0.00

Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 318.35 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.

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

1: Vérité PM , Guido CA , Jacquemin D . First-principles investigation of the double ESIPT process in a thiophene-based dye. Phys Chem Chem Phys. 2019 Jan 30;21(5):2307-2317. doi: 10.1039/c8cp06969g. PMID: 30607419. 2: Lan RF, Yang YF, Ma YZ, Li YQ. The theoretical study of excited-state intramolecular proton transfer of 2,5-bis(benzoxazol-2-yl)thiophene-3,4-diol. Spectrochim Acta A Mol Biomol Spectrosc. 2017 Aug 5;183:37-44. doi: 10.1016/j.saa.2017.04.018. Epub 2017 Apr 18. PMID: 28433832. 3: Zhao J, Zheng Y. Elaboration and controlling excited state double proton transfer mechanism of 2,5-bis(benzoxazol-2-yl)thiophene-3,4-diol. Sci Rep. 2017 Mar 22;7:44897. doi: 10.1038/srep44897. PMID: 28327590; PMCID: PMC5361162. 4: Hao Y , Zheng M , Chen Y . A highly stable and water-soluble fluorescent dye for fluorescence imaging of living cells. J Mater Chem B. 2014 Nov 14;2(42):7369-7374. doi: 10.1039/c4tb01210k. Epub 2014 Sep 26. PMID: 32261961. 5: Nakamura A, Kojima S, Kaniwa M. [The structures of two chemicals sometimes misunderstood as tris-(2,3-dibromopropyl)phosphate in the official analytical method]. Eisei Shikenjo Hokoku. 1986;(104):109-13. Japanese. PMID: 3567421. 6: Anders G. Analysis of river water and drinking water from seven European countries. Environ Qual Saf Suppl. 1975;4:143-56. PMID: 1064531.