2,7-Dichlorofluoresceine, ACS reagent

Name: 2,7-Dichlorofluoresceine, ACS reagent
Brand: Vaqora Chemicals
SKU: VQ-002590

About 2,7-Dichlorofluoresceine, ACS reagent

Vaqora Chemicals supplies 2,7-Dichlorofluoresceine (ACS grade), an enzyme / protein reagent registered under CAS number 76-54-0. Its molecular formula is C20H10Cl2O5 and its molecular weight is 401.2 g/mol. Systematically, it is named 2',7'-dichloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one. Alternative names: 2',7'-Dichlorofluorescein and Fluorescein 27.

In its supplied form it is an orange to red-brown powder. Reported physical data include a melting point of 280 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span enzymatic assays, enzyme inhibition studies, protein research and indicator for titrations. Our customers for this product work in academic and industrial research and diagnostics and biotechnology.

Vaqora Chemicals supplies 2,7-Dichlorofluoresceine in 1 g, 10 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Enzymatic assays
Enzyme inhibition studies
Protein research
Indicator for titrations

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	2,7-Dichlorofluoresceine, ACS reagent
Catalogue No.	VQ-002590
CAS Number	76-54-0
IUPAC name	2',7'-dichloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
Molecular formula	C₂₀H₁₀Cl₂O₅
Molecular weight	401.2 g/mol
Exact mass	399.9905
Grade	ACS
HSN code	32049000
InChIKey	VFNKZQNIXUFLBC-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C=C4OC5=CC(=C(C=C35)Cl)O)O)Cl
PubChem CID	64944

Physical properties
Physical form	Powder
Appearance	Orange to red-brown powder
Melting point	280 °C
LogP (XLogP3)	4.7
H-bond donors / acceptors	2 / 5
TPSA	76 Å²
Synonyms	2',7'-Dichlorofluorescein, 2',7'-dichloro-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one, Fluorescein 27, Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',7'-dichloro-3',6'-dihydroxy-, Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',7'-dichloro-3',6'-dihydroxy-, 2',7'-dichlorofluorescin, 2,7-Dichlorofluorescein, 2',7'-Dichloro-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Spiro[isobenzofuran-1(3H),9'-[9h]xanthen]-3-one,2',7'-dichloro-3',6'-dihydroxy-, 2',7'-Dichlorofluorescein [Fluorescent indicator], 2',7'-bis(chloranyl)-3',6'-bis(oxidanyl)spiro[2-benzofuran-3,9'-xanthene]-1-one, 11,16-dichloro-12,15-dihydroxyspiro[3-hydroisobenzofuran-3,9'-xanthene]-1-one

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 76-54-0

AR

2,7-Dichlorofluoresceine

CAS: 76-54-0
Formula: C₂₀H₁₀Cl₂O₅
MW: 401.2 g/mol

VQ-002589

Frequently asked questions

What is the CAS number of 2,7-Dichlorofluoresceine, ACS reagent?

The CAS Registry Number of 2,7-Dichlorofluoresceine, ACS reagent is 76-54-0. It is also known as 2',7'-Dichlorofluorescein, 2',7'-dichloro-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one, Fluorescein 27.

What is the molecular formula and molecular weight of 2,7-Dichlorofluoresceine, ACS reagent?

2,7-Dichlorofluoresceine, ACS reagent has the molecular formula C20H10Cl2O5 and a molecular weight of 401.2 g/mol. Its IUPAC name is 2',7'-dichloro-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one.

Which grade and pack sizes of 2,7-Dichlorofluoresceine, ACS reagent can I order?

We supply 2,7-Dichlorofluoresceine, ACS reagent in ACS grade, in 1 g, 10 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,7-Dichlorofluoresceine, ACS reagent?

Yes. Every lot of 2,7-Dichlorofluoresceine, ACS reagent is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,7-Dichlorofluoresceine, ACS reagent be shipped internationally?

Yes. 2,7-Dichlorofluoresceine, ACS reagent is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.