Phenol red, practical grade

Name: Phenol red, practical grade
Brand: Vaqora Chemicals
SKU: VQ-045723

About Phenol red, practical grade

Vaqora Chemicals supplies Phenol red in Practical grade, a biological stain registered under CAS number 143-74-8. The compound has the formula C19H14O5S, corresponding to a molecular weight of 354.4 g/mol. Systematically, it is named 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol. It is also known as phenolsulfonphthalein or Sulphonthal.

Store in a tightly closed container in a cool, dry and well-ventilated place. 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 indicator for titrations. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Vaqora Chemicals supplies Phenol red in 25 g and 100 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Indicator for titrations

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Phenol red, practical grade
Catalogue No.	VQ-045723
CAS Number	143-74-8
IUPAC name	4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
Molecular formula	C₁₉H₁₄O₅S
Molecular weight	354.4 g/mol
Exact mass	354.0562
Grade	Practical
HSN code	38220090
InChIKey	BELBBZDIHDAJOR-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
PubChem CID	4766

Physical properties
Physical form	Other
LogP (XLogP3)	3
H-bond donors / acceptors	2 / 5
TPSA	92.2 Å²
Synonyms	phenolsulfonphthalein, Sulphonthal, PSP (indicator), Phenolsulphonphthalein, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, (S,S-dioxide), 2-(Bis(4-hydroxyphenyl)methyliumyl)benzenesulfonate, Sulfonphthal, Sulphental, 3,3-Bis(4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide, Phenolsulfonephthalein, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-

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 143-74-8

AR

Phenol red, GR

CAS: 143-74-8
Formula: C₁₉H₁₄O₅S
MW: 354.4 g/mol

VQ-000682

Phenol red, solution

CAS: 143-74-8
Formula: C₁₉H₁₄O₅S
MW: 354.4 g/mol

VQ-003626

Frequently asked questions

What is the CAS number of Phenol red, practical grade?

The CAS Registry Number of Phenol red, practical grade is 143-74-8. It is also known as phenolsulfonphthalein, Sulphonthal, PSP (indicator).

What is the molecular formula and molecular weight of Phenol red, practical grade?

Phenol red, practical grade has the molecular formula C19H14O5S and a molecular weight of 354.4 g/mol. Its IUPAC name is 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol.

Which grade and pack sizes of Phenol red, practical grade can I order?

We supply Phenol red, practical grade in Practical grade, in 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Phenol red, practical grade?

Yes. Every lot of Phenol red, practical grade 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 Phenol red, practical grade be shipped internationally?

Yes. Phenol red, practical grade 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.