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

MedKoo CAT#: 563708

CAS#: 3326-31-6

Description: 6-FITC is an amine-reactive FITC labeling probe.

Chemical Structure

CAS# 3326-31-6

Theoretical Analysis

MedKoo Cat#: 563708
Name: 6-FITC
CAS#: 3326-31-6
Chemical Formula: C21H11NO5S
Exact Mass: 389.0358
Molecular Weight: 389.38
Elemental Analysis: C, 64.78; H, 2.85; N, 3.60; O, 20.54; S, 8.23

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

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Synonym: 6-FITC; 6 FITC; 6FITC; FITC-II; Fluorescein isothiocyanate isomer II; FITC II; FITCII;

IUPAC/Chemical Name: 3',6'-Dihydroxy-7-isothiocyanatospiro[2-benzofuran-3,9'-xanthene]-1-one


InChi Code: InChI=1S/C21H11NO5S/c23-11-4-6-13-17(8-11)26-18-9-12(24)5-7-14(18)21(13)15-2-1-3-16(22-10-28)19(15)20(25)27-21/h1-9,23-24H

SMILES Code: O=C1OC2(C3=C(OC4=C2C=CC(O)=C4)C=C(O)C=C3)C5=CC=CC(N=C=S)=C15

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: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

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

HS Tariff Code: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 389.38 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

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1: Kasugai S, Fujisawa R, Waki Y, Miyamoto K, Ohya K. Selective drug delivery system to bone: small peptide (Asp)6 conjugation. J Bone Miner Res. 2000 May;15(5):936-43. PubMed PMID: 10804024.

2: Morilla A, Licence ST, Binns RM. Direct cytotoxicity mediated by allogeneic and isogeneic pig lymphocytes modified with fluorescein isothiocyanate. Rev Latinoam Microbiol. 1991 Jan-Mar;33(1):40-7. PubMed PMID: 1670253.