Chlorophenol red, GR

Name: Chlorophenol red, GR
Brand: Vaqora Chemicals
SKU: VQ-000533

About Chlorophenol red, GR

Chlorophenol red is a biological stain (AR grade) carrying the CAS registry number 4430-20-0. The compound has the formula C19H12Cl2O5S, corresponding to a molecular weight of 423.3 g/mol. The IUPAC name is 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol. Alternative names: 3',3'-Dichlorophenolsulfonaphthalein and Chlorphenol Red.

In its supplied form it is red powder or crystals or granules or chunks. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for histology and cytology staining, microscopy, clinical laboratories and paints, coatings and inks. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 1 g, 5 g, 25 g and 100 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Paints, coatings & inks

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Chlorophenol red, GR
Catalogue No.	VQ-000533
CAS Number	4430-20-0
IUPAC name	2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
Molecular formula	C₁₉H₁₂Cl₂O₅S
Molecular weight	423.3 g/mol
Exact mass	421.9783
Grade	AR
HSN code	29349900
InChIKey	WWAABJGNHFGXSJ-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C=C3)O)Cl)C4=CC(=C(C=C4)O)Cl
PubChem CID	20486

Physical properties
Physical form	Granules
Appearance	Red powder or crystals or granules or chunks
LogP (XLogP3)	4.3
H-bond donors / acceptors	2 / 5
TPSA	92.2 Å²
Synonyms	3',3'-Dichlorophenolsulfonaphthalein, 2-Chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxobenzo[c]oxathiol-3-yl]phenol, Chlorphenol Red, Chlorphenolsulfonphthalein, Dichlorophenolsulfonephthalein, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-chloro-, 3',3''-Dichlorophenolsulfonphthalein, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2-chloro-, S,S-dioxide, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro-, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-chloro-, S,S-dioxide, 3,3-bis(3-chloro-4-hydroxyphenyl)-3H-2,1$l^(6)-benzoxathiole-1,1-dione, 3,3-bis(3-chloro-4-hydroxyphenyl)-3H-2,1$l^{6}-benzoxathiole-1,1-dione

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 4430-20-0

Chlorophenol red

CAS: 4430-20-0
Formula: C₁₉H₁₂Cl₂O₅S
MW: 423.3 g/mol

VQ-045645

Frequently asked questions

What is the CAS number of Chlorophenol red, GR?

The CAS Registry Number of Chlorophenol red, GR is 4430-20-0. It is also known as 3',3'-Dichlorophenolsulfonaphthalein, 2-Chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxobenzo[c]oxathiol-3-yl]phenol, Chlorphenol Red.

What is the molecular formula and molecular weight of Chlorophenol red, GR?

Chlorophenol red, GR has the molecular formula C19H12Cl2O5S and a molecular weight of 423.3 g/mol. Its IUPAC name is 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol.

Which grade and pack sizes of Chlorophenol red, GR can I order?

We supply Chlorophenol red, GR in AR grade, in 1 g, 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chlorophenol red, GR?

Yes. Every lot of Chlorophenol red, GR 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 Chlorophenol red, GR be shipped internationally?

Yes. Chlorophenol red, GR 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.