Thymol blue, GR

Name: Thymol blue, GR
Brand: Vaqora Chemicals
SKU: VQ-000414

About Thymol blue, GR

Listed under CAS 76-61-9, Thymol blue is an indicator available from Vaqora Chemicals in AR grade. With the molecular formula C27H30O5S, it has a molar mass of 466.6 g/mol. Common synonyms include Thymolsulfonphthalein and Thymolsulfonephthalein.

In its supplied form it is a dark green to dark brown powder. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span titration end-point detection, pH determination, analytical testing and indicator for titrations. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Thymol blue in 5 g, 25 g, 500 g and 5 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Thymol blue, GR
Catalogue No.	VQ-000414
CAS Number	76-61-9
IUPAC name	4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenol
Molecular formula	C₂₇H₃₀O₅S
Molecular weight	466.6 g/mol
Exact mass	466.1814
Grade	AR
HSN code	29349900
InChIKey	PRZSXZWFJHEZBJ-UHFFFAOYSA-N
SMILES	CC1=CC(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O
PubChem CID	65565

Physical properties
Physical form	Powder
Appearance	Dark green to dark brown powder
LogP (XLogP3)	6
H-bond donors / acceptors	2 / 5
TPSA	92.2 Å²
Synonyms	Thymolsulfonphthalein, Thymolsulfonephthalein, Thymolsulfophthalein, Thymosulfonphthalein, Thymolsulphonphthalein, Thymolsulfonephalein, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-, S,S-dioxide, Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, S,S-dioxide, Thymol Bleu, 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 76-61-9

Thymol blue solution

CAS: 76-61-9
Formula: C₂₇H₃₀O₅S
MW: 466.6 g/mol

VQ-003645

IP/BP/EP / ACS / AR

Thymol blue solution, IP/BP/EP, ACS, AR

CAS: 76-61-9
Formula: C₂₇H₃₀O₅S
MW: 466.6 g/mol

VQ-047278

Practical

Thymol blue solution, practical grade

CAS: 76-61-9
Formula: C₂₇H₃₀O₅S
MW: 466.6 g/mol

VQ-045583

Frequently asked questions

What is the CAS number of Thymol blue, GR?

The CAS Registry Number of Thymol blue, GR is 76-61-9. It is also known as Thymolsulfonphthalein, Thymolsulfonephthalein, Thymolsulfophthalein.

What is the molecular formula and molecular weight of Thymol blue, GR?

Thymol blue, GR has the molecular formula C27H30O5S and a molecular weight of 466.6 g/mol. Its IUPAC name is 4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenol.

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

We supply Thymol blue, GR in AR grade, in 5 g, 25 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thymol blue, GR?

Yes. Every lot of Thymol blue, 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 Thymol blue, GR be shipped internationally?

Yes. Thymol blue, 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.