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Thymol Blue

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Origin: China

Cas No: 76-61-9

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
76-61-9
Other Names:
Thymol blue
MF:
C27H30O5S
EINECS No.:
200-973-3
Place of Origin:
Shaanxi, China
Type:
Agrochemical Intermediates
Purity:
99%
Brand Name:
Jxyuan
Model Number:
Jxyuan-Thymol blue
Application:
Industrial
Appearance:
Dark green
Product Name:
Thymol blue
Function:
Dyestuff Intermediates
Color:
Dark green
Logo:
Customized
Molecular Weight:
466.5891
MOQ:
1KG
Density:
1.252 g/cm3
Storage:
Cool Dried Storage
Package:
drum
Shelf Life:
2 Years
Packaging&Delivery
Selling Units:
Single item
Single package size:
10X4X4 cm
Single gross weight:
1.500 kg
Package Type:
```
1 Piece/bag;
```
Lead Time:
Quantity(Kilograms) 1 - 100 101 - 500 501 - 1000 >1000
Est. Time(days) 3 5 7 To be negotiated
Products Description
ISO Certificated Wholesale Price Thymol Blue

Property

CAS No.: 76-61-9 Formula: C27H30O5S Molecular Weight: 466.58900

Description

Thymol blue (thymolsulphonephthalein) is a brownish-green or reddish-brown crystalline powder that is used as a pH indicator. It is insoluble in water but soluble in alcohol and dilute alkali solutions.
Thymol blue (pH indicator) below pH 8.0 above pH 9.6 8.0 ⇌ 9.6; Thymol blue (pH indicator) below pH 1.2 above pH 2.8 1.2 ⇌ 2.8; It transitions from red to yellow at pH 1.2–2.8 and from yellow to blue at pH 8.0–9.6. It is usually a component of Universal indicator.

Basic Info

Chemical Name	Thymol Blue
Synonyms	3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide; s-dioxide; Phenol, 4,4‘-(3H-2,1-benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)-, S,S-dioxide; Thymol Blue,ACS; Thymolsulfonephthalein; 2,2'-dimethyl-5,5'-diisopropylphenolsulfophthalein; Thymolsulfonephalein; bleudethymol; S NO 879; Thymolsulfophthalein; THYMOL BLUE TS; 3,3'-diisopropyl-6-6'-dimethylphenolsulfonephthalein; 3,3'-di-iso-propyl-6,6'-dimethylphenolsulphonephthalein;
CAS No.	76-61-9
Molecular Formula	C27H30O5S
Molecular Weight	466.58900
PSA	92.21000
LogP	7.05300

Properties

Appearance & Physical State	dark green to dark brown crystalline powder
Density	1.252 g/cm3
Boiling Point	580.5ºC at 760 mmHg
Melting Point	221-224ºC
Flash Point	304.9ºC
Refractive Index	1.599
Stability	Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents.
Storage Condition	Store at RT.

Safety Info

RTECS	XP2575000
Safety Statements	S24/25
RIDADR	UN 1170 3/PG 3
Risk Statements	R10

Synthesis Route

thymol→2-(4-hydroxy-5-isopropyl-2-methyl-benzoyl)-benzenesulfonic acid+Thymol Blue
2-Sulfobenzoic anhydride+thymol→2-(4-hydroxy-5-isopropyl-2-methyl-benzoyl)-benzenesulfonic acid+Thymol Blue
thymol→Thymol Blue

Precursor

N-(1-ethoxycarbonyl-propen-2-yl)urea
thymol
2-Sulfobenzoic anhydride
2-(4-hydroxy-5-isopropyl-2-methyl-benzoyl)-benzenesulfonic acid

Downstream Product

Sodium Thymol Blue
bromothymol blue

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