Thymol Blue CAS 76-61-9

Product name:Thymol Blue
CAS：76-61-9
MF：C27H30O5S
MW：466.59
EINECS:200-973-3

Product Description

Product name:Thymol Blue

CAS：76-61-9

MF：C27H30O5S

MW：466.59

EINECS:200-973-3

Applicatiuon：

Used as acid-base indicator

Specifications :

Thymol Blue Basic information
Product Name:	Thymol Blue
CAS:	76-61-9
MF:	C27H30O5S
MW:	466.59
EINECS:	200-973-3
Mol File:	76-61-9.mol
Thymol Blue Chemical Properties
Melting point	221-224 °C (dec.) (lit.)
Boiling point	539.4°C (rough estimate)
density	1.1413 (rough estimate)
refractive index	1.5300 (estimate)
Fp	36 °C
storage temp.	room temp
solubility	0.11g/l
form	Solid
pka	Pka1:1.65(at 25℃)(PH=1.2 to 2.8) Pka2:8.9(at 25℃)(PH=8.0 to 9.6)
color	Dark green to dark brown
Odor	Characteristic odour
PH Range	1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
Water Solubility	Soluble in alcohol and dilute alkali solutions. Insoluble in water.
λmax	594nm, 376nm, 544nm, 430nm
Merck	149,400
BRN	368036
Stability:	Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents.
CAS DataBase Reference	76-61-9(CAS DataBase Reference)
NIST Chemistry Reference	Thymolsulfonephthalein(76-61-9)

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.