CAS 76-59-5 Bromothymol Blue (BTB)

• CAS No.: 76-59-5
• Formula: C27h28br2o5s
• EINECS: 200-971-2
• Certification: ISO 9001
• Color: Pink-Brown to Purple
• Appearance: Solid
• Model NO.: YBC284
• Type: Pharmaceutical Intermediates
• Quality: Refined
• Colour: Pink-Brown to Purple
• Samples: Available
• Certificates: ISO9001/SGS
• Package: 1g/5g/25g/100g/500kg/10kg
• Stocks: in Stock
• Lead Time: 5-7 Working Days
• Shelf Life: 2-3 Years
• Site Audit: Available
• Transport: Air/Express/Sea
• MOQ: 10g
• Transport Package: Drum/Bottle/Bags
• Specification: IND
• Trademark: Yunbang OEM
• Origin: China

Product Description

CAS 76-59-5 Bromothymol Blue (BTB)

Company Informations

Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.

The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of Pharmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.
 

FAQ

1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.

2: What's your MOQ?
A: We can have a discussion.

3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.

4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.

5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.

6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
 

Our Advantages

1. 90days quality guarantee for exchange.

2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.

3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.

Product analysis

Product Name:	Bromothymol Blue
Synonyms:	4,4'-(3h-2,1-benzoxathiol-3-ylidene)bis(2-bromo-3-methyl-6-(1-methylethyl)phen;6,6'-(3h-2,1-benzoxathiol-3-ylidene)bis(2-bromothymol)s,s-dioxide;dibromothymolsulphophthalein;ol)s,s-dioxide  4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[2-BROMO-3-METHYL-6-(1-METHYLETHYL)-, S,S-DIOXIDE; 4,4'-(1,1-DIOXIDO-3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[2-BROMO-3-METHYL-6-(1-METHYLETHYL)-;3,3′-Dibromothymothymolsulfonphthalein;alpha,alpha-bis(5-bromo-4-hydroxy-6-methyl-m-cumenyl)toluene-2,alpha-sultone
CAS:	76-59-5
MF:	C27H28Br2O5S
MW:	624.38
EINECS:	200-971-2
Product Categories:	Sulfonephthalein;Organics;Analytical Chemistry;Indicator Solutions;Indicators;Titration;Indicator (pH);pH Indicators;AR
Mol File:	76-59-5.mol

Bromothymol Blue Chemical Properties

Melting point	200-202 °C (lit.)
density	1.4668 (estimate)
Fp	38 °C
storage temp.	Store at +5°C to +30°C.
solubility	Solubility Sparingly soluble in water, benzene; soluble in ethanol, ether; insoluble in petrol eum ether
form	Solid
pka	7.0, 7.1(at 25ºC)
Boiling point	614.3±55.0 °C(Predicted)
color	Pink-brown to purple
PH Range	6(yellow)-7.6(blue)
PH	pH : 6.0~7.6
Odor	Characteristic odour
Water Solubility	slightly soluble
λmax	420nm, 435nm, 620nm
Merck	14,1445
BRN	373934
Stability:	Stable. Incompatible with strong oxidizing agents.
Major Application	Sol-gel matrix, fuel cells, optical sensors, combustion gas detection system, paints, toys, cleaning products, detergents, textiles, food freshness sensor, identifying fresh and stale rice,wheat, detecting microorganisms, bacterial growth, psychoactive drug, dental materials
LogP	8.600 (est)
CAS DataBase Reference	76-59-5(CAS DataBase Reference)
EPA Substance Registry System	Bromothymol blue (76-59-5)

Safety Information

Hazard Codes	Xn
Risk Statements	10-41-36/37/38-20/21/22
Safety Statements	24/25-39-26-36
RIDADR	1170
WGK Germany	3
RTECS	SJ450000
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29349990

 

Detailed Photos