Thymolphthalein, GR

Name: Thymolphthalein, GR
Brand: Vaqora Chemicals
SKU: VQ-000723

About Thymolphthalein, GR

Listed under CAS 125-20-2, Thymolphthalein is a biological stain available from Vaqora Chemicals (AR grade). The compound has the formula C28H30O4, corresponding to a molecular weight of 430.5 g/mol. Its systematic (IUPAC) name is 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one. Alternative names: Thymophthalein and thymolphthaleine.

It is supplied as a white to orange to brown powder. Literature values give a melting point of 248-254 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Danger” with 3 hazard statements. Review the Safety Data Sheet before use.

Typical applications include 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.

Available in 5 g, 25 g, 100 g and 5 x 1 kg packs, Thymolphthalein is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories
Indicator for titrations

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Thymolphthalein, GR
Catalogue No.	VQ-000723
CAS Number	125-20-2
IUPAC name	3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
Molecular formula	C₂₈H₃₀O₄
Molecular weight	430.5 g/mol
Exact mass	430.2144
Grade	AR
HSN code	29322090
InChIKey	LDKDGDIWEUUXSH-UHFFFAOYSA-N
SMILES	CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O
PubChem CID	31316

Physical properties
Physical form	Powder
Appearance	White to orange to brown powder
Melting point	248-254 °C
LogP (XLogP3)	6.8
H-bond donors / acceptors	2 / 4
TPSA	66.8 Å²
Synonyms	5',5''-Diisopropyl-2',2''-dimethylphenolphthalein, Thymophthalein, 1(3H)-Isobenzofuranone, 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-, Phenolphthalein, 5',5''-diisopropyl-2',2''-dimethyl-, 3,3-Bis(4-hydroxy-5-isopropyl-o-tolyl)phthalide, 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-, 3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)isobenzofuran-1(3H)-one, 3,3-Bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3H)-isobenzofuranone, 3,3-bis(4-hydroxy-5-isopropyl-2-methyl-phenyl)isobenzofuran-1-one, 3,3-bis[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]-2-benzofuran-1(3H)-one, 3,3-bis[4-hydroxy-2-methyl-5-(methylethyl)phenyl]-3-hydroisobenzofuran-1-one, thymolphthaleine

Safety & hazard information (GHS)

Health hazard

Signal word: Danger

Hazard statements

H341Suspected of causing genetic defects
H350May cause cancer
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P280, P318, 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 125-20-2

Extra Pure

Thymolphthalein indicator solution, extra pure

CAS: 125-20-2
Formula: C₂₈H₃₀O₄
MW: 430.5 g/mol

VQ-045777

Practical

Thymolphthalein, practical grade

CAS: 125-20-2
Formula: C₂₈H₃₀O₄
MW: 430.5 g/mol

VQ-045703

Frequently asked questions

What is the CAS number of Thymolphthalein, GR?

The CAS Registry Number of Thymolphthalein, GR is 125-20-2. It is also known as 5',5''-Diisopropyl-2',2''-dimethylphenolphthalein, Thymophthalein, 1(3H)-Isobenzofuranone, 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-.

What is the molecular formula and molecular weight of Thymolphthalein, GR?

Thymolphthalein, GR has the molecular formula C28H30O4 and a molecular weight of 430.5 g/mol. Its IUPAC name is 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one.

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

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

Do you provide a COA and SDS with Thymolphthalein, GR?

Yes. Every lot of Thymolphthalein, 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 Thymolphthalein, GR be shipped internationally?

Yes. Thymolphthalein, 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.