Calcein

Name: Calcein
Brand: Vaqora Chemicals
SKU: VQ-046788

About Calcein

Calcein (CAS 1461-15-0) is an indicator offered by Vaqora Chemicals. With the molecular formula C30H26N2O13, it has a molar mass of 622.5 g/mol. Alternative names: Oftasceine and Fluorexone.

Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Typical applications include titration end-point detection, pH determination, analytical testing and indicator for titrations. It is used across academic and industrial research and textiles and dyeing.

Standard pack sizes are 5 g and 25 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Titration end-point detection
pH determination
Analytical testing
Indicator for titrations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Calcein
Catalogue No.	VQ-046788
CAS Number	1461-15-0
IUPAC name	2-[[7'-[[bis(carboxymethyl)amino]methyl]-3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-2'-yl]methyl-(carboxymethyl)amino]acetic acid
Molecular formula	C₃₀H₂₆N₂O₁₃
Molecular weight	622.5 g/mol
Exact mass	622.1435
HSN code	32049000
InChIKey	DEGAKNSWVGKMLS-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C(=C4)CN(CC(=O)O)CC(=O)O)O)OC5=C3C=C(C(=C5)O)CN(CC(=O)O)CC(=O)O
PubChem CID	65079

Physical properties
Physical form	Other
LogP (XLogP3)	-3.1
H-bond donors / acceptors	6 / 15
TPSA	232 Å²
Synonyms	Oftasceine, 2',7'-Bis((bis(carboxymethyl)amino)methyl)fluorescein, 2,7-Bis(N,N-bis(carboxymethyl)aminomethylene)fluorescein, Fluorexone, Oftasccine, Calcein indicator, Bis[N,N-bis(carboxymethyl)aminomethyl]fluorescein, Fluorescein-bis(methyliminodiacetic acid), Calcein indicator, for metal determination, Calcein for Fluorometric Determination of Ca, Fluorescein,7'-bis[[bis(carboxymethyl)amino]methyl]-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, 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 1461-15-0

AR

Calcein, GR

CAS: 1461-15-0
Formula: C₃₀H₂₆N₂O₁₃
MW: 622.5 g/mol

VQ-000327

Frequently asked questions

What is the CAS number of Calcein?

The CAS Registry Number of Calcein is 1461-15-0. It is also known as Oftasceine, 2',7'-Bis((bis(carboxymethyl)amino)methyl)fluorescein, 2,7-Bis(N,N-bis(carboxymethyl)aminomethylene)fluorescein.

What is the molecular formula and molecular weight of Calcein?

Calcein has the molecular formula C30H26N2O13 and a molecular weight of 622.5 g/mol. Its IUPAC name is 2-[[7'-[[bis(carboxymethyl)amino]methyl]-3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-2'-yl]methyl-(carboxymethyl)amino]acetic acid.

Which grade and pack sizes of Calcein can I order?

We supply Calcein, in 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Calcein?

Yes. Every lot of Calcein 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 Calcein be shipped internationally?

Yes. Calcein 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.