CAS No 1945-77-3 Methylthymol Blue Sodium Salt Powder Metal Indicator

• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Refined
• CAS No.: 1945-77-3
• Formula: C37h40n2na4o13s
• Einecs: 217-743-3
• Model NO.: YB069
• Colour: Dark Green to Reddish-Brown
• Samples: Available
• Purity: 99%
• Certificates: ISO9001/SGS
• Package: 1kg/5kg/10kg/25kg
• 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: Dye content 60%
• Trademark: Yunbang OEM
• Origin: China

Product Description

CAS NO 1945-77-3 Methylthymol blue sodium salt powder metal indicator
 

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 Description

Analysis Note

Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ 1 (buffer pH 7.0): 602 - 606 nm
Absorption maximum λ 2 (buffer pH 7.0): 430 - 450 nm
Spec. Absorptivity A 1%/1cm (λ1_max; 0.04 g/l; buffer pH 7.0; calc. on dried substance): ≥ 60
Spec. Absorptivity A 1%/1cm (λ2_max; 0.04 g/l; buffer pH 7.0; calc. on dried substance): ≥ 85
Loss on drying (50 °C/ <1 hPa; 3h): ≤ 7%
Suitability as indicator (for metal titration): passes test
 

Product analysis

Product Name:	METHYLTHYMOL BLUE
Synonyms:	THYMOLSULFONEPHTHALEINDI-(METHYL-IMINODIACETIC ACID) SODIUM SALT;ethyl)-3,1-phenylene]methylene]]bis[n-(carboxymethyl)-,s,s-dioxide,tetrasodiu;glycine,n,n'-[3h-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-2-methyl-5-(1-methyl;Glycine,N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-,S,S-dioxide,tetrasodiumsalt;Methylthymol Blue W/S;N-Methylthymol, Blue Sodium Salt, Reagent;MTB, Thymolsulfonphthalein-3μ,3-bis(methyliminodiacetic acid sodium salt), 3,3μ-Bis[N,N-di(carboxymethyl)aminomethyl]thymolsulfonephthalein sodium salt;3,3-Bis[3-[bis(sodiooxycarbonylmethyl)aminomethyl]-4-hydroxy-5-isopropyl-2-methylphenyl]-3H-2,1-benzoxathiole 1,1-dioxide
CAS:	1945-77-3
MF:	C37H40N2Na4O13S
MW:	844.74
EINECS:	217-743-3
Product Categories:	Analytical Chemistry;Chelating Reagents;Complexones;Photometric Reagents (Complexone)
Mol File:	1945-77-3.mol

storage temp.	Store below +30°C.
solubility	460g/l
form	Powder
color	Dark green to reddish-brown
PH	6.2 (10g/l, H2O, 20ºC)
Water Solubility	Soluble in water (460 g/L) at 20°C.
Stability:	Stable. Incompatible with strong oxidizing agents.
EPA Substance Registry System	Glycine, N,N'-[(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[[6-hydroxy-2-methyl-5-(1-methylethyl)-3,1-phenylene]methylene]]bis[N-(carboxymethyl)-, tetrasodium salt (1945-77-3)

Hazard Codes	Xi
Risk Statements	5-36/37/38
Safety Statements	24/25-36-26-15
WGK Germany	3
TSCA	Yes
HS Code	2934 99 90

 

Chemical Properties	green-brown crystalline powder
Uses	Methylthymol Blue sodium salt is used as thymol-containing organic dye. It is used as an indicator for complexometry. It is used in determination of sulfate in rainwater. It combines with silica gel and aids in the separation and preconcentration of trace amounts of heavy metals from some salts.
Purification Methods	Methyl Thymol Blue, sodium salt [1945-77-3] M 844.8,  1.89 x 104 at 435nm, pH 5.5, 252525 25 25 25 25pK 1 3.0, pK 2 3.3, pK 3 3.8, pK 4 7.4 (pK 4 7.2) , pK 5 11.5 pK 6 13.4. The starting material for synthesis is Thymol Blue. Purify it as for Xylenol Orange on in "Heterocyclic Compounds", Chapter 4. [Tereshin et al. J Anal Chem USSR (Engl Trans) 20 1138 1965, K.rbl & Kakác Collect Czech Chem Commun 23 889 1958, Beilstein 19/8 V 2830.]

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