3,3',5,5'-Tetramethylbenzidine dihydrochloride TMB CAS 64285-73-0

1. Basic information

English name: 3,3 ', 5,5' - Tetramethylbenzidine dihydrochloride.

CAS number: 64285-73-0.

Molecular formula: C16HzCi ₂ N ₂ or C16HN · 2HCI

Molecular weight: 313.27.

2. Physical properties

Appearance and Characteristics: White to pale yellow powder or white or micro powder red crystalline powder.

Melting point: ≥ 300 ° C.

Boiling point: 368.6 ° C at 760 mmHg.

Flash point: 210.8 ° C.

Water solubility: easily soluble in water.

3. Chemical properties

Stability: Stable at room temperature and pressure, but sensitive to air, light, and moisture. It is better to operate under inert gas and avoid contact with strong oxidants.

Color reaction: As a substrate of peroxidase, a color reaction occurs under the action of hydrogen peroxide or peroxidase, producing a soluble pale yellow end product that can be detected by spectrophotometry at 370nm or 620-650nm. The reaction can be terminated with 2M, resulting in a yellow color and can be read at 450nm.

4. Purpose

Enzyme immunoassay: It is a commonly used substrate in enzyme immunoassay (EIA) and enzyme-linked immunosorbent assay (ELISA) for detecting various biomarkers, such as hormones, tumor markers, pathogen antibodies, etc.

Clinical diagnosis: widely used in clinical biochemical testing, it can be used to detect specific substances in biological samples such as blood and urine, and assist in the diagnosis of diseases.

Forensic examination: It can be used to detect traces such as bloodstains and fingerprints, and plays an important role in criminal investigation.

5. Storage and Security

Storage conditions: It should be stored in a dry and dark place at 2-8 ° C, away from metals.

Safety information: Customs code is 29215990, WGK Germany is 3, hazard category code is R40, safety instructions are S22-S24/25, which may be irritating to the eyes, respiratory system, and skin. When using, appropriate protective equipment such as gloves, goggles, etc. should be worn to avoid contact with the skin and eyes. Once in contact, rinse immediately with plenty of water.

Packaging Details: 25 kg/bag or as your requirement.
Port: Tianjin/ Qingdao/ Shanghai, etc.
We can ship the samples by air.
Lead Time: Within 15days after receiving the advance payment or original L/C.

XI'AN YI HANG CHEMICAL CO.,LTD was founded in 2002, located in xian City, shannxi, China. We are the high-tech chemical enterprise which specialized in researching, manufacturing and trading for chemical raw materials ,our products widely used in paints, textile, rubber, leather, plastic and so on.

With many years development and operation,we have become the group company for chemical production,we have the owned factory for produce stable quality products with high performance, and the advanced lab to ensure the best quality of each batch products.

We have our strictly quality control in our production, and we have passed ISO9001:2015 Quality Management System Certification and ISO14001 Environment Management System Certification.

Our main products includes Titanium Dioxide, Lithopone, Iron Oxide series, Chrome Oxide Green, Zinc Oxide, Carbon Black, STPP, SHMP, Oxalic Acid, DOP, SLES, and so on.

Q1: Are you manufacturer or trading company?

A1:Manufacturer.

Q2: Can I get some sample?
A2: Yes, usually 10-25g sample for free.

Q3: Is there a discount?
A3: Of course, welcome to contact us. Price would be different based on different quantity. For bulk
quantity, we will have discount for you.

Q4: How long for production and delivery?
A4: Most products we have in stock, sent time:Within 1-3 business days after received payment. Customized products further discussed.

Q5: Do you accept ODM or OEM service?
A5: Yes,we accept ODM and OEM services, ranges: Soft gel, Capsule, Tablet, Sachet, Granule,Private Label service, etc. Please contact us to design your own brand product.

Q6: How to deliver the goods?
A6: ≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.

Q7: How to start orders or make payments?
A7:There are two ways for you to confirm order:
1. Proforma invoice with our company bank details will be sent to you once the order confirmed by Email. Pls arrange payment by TT. Goods will be sent after received payment within 1-3 business days.
2. Trade assurance order will be drafted for you through ALIBABA. Pls confirm and pay through Alibaba. Goods will be sent after received payment within 1-3 business days.