Delivery Time:advantaged product, we have it in stock.
Certification:ISO9001:2008

TMB Hcl CAS NO 207738-08-7 ELISA Reagents TMB dihydrochloride 98%

Quick Detail:

Name	TMB dihydrochloride	Appearance	White or slight red powder
Assay:	≥98.0	Solubility(1% aq.)	Clear, colorless solution
Loss on drying,%	≤10.9	MP	>300°C

Description:

> Formula: C16H26Cl2N2O2

> Weight:349.296

> Appearance: White or slight red powder

> MP:>300°C(MP)

> Storage: 2-8℃,in dark place

> Safety Description: S22-24/25

> Danger Description:

> Danger Symbol:

Specifications

Assay	≥98.0
MP	>300°C
TLC
Heavy metals, ppm
Loss on drying,%	≤10.9
Shelf life	Two years

Synonyms:

3,3\',5,5\'-TETRAMETHYLBENZIDINE DIHYDROCHLORIDE HYDRATE, 98+%;3,3μ,5,5μ-Tetramethylbenzidine hydrate dihydrochloride;3,3′,5,5′-Tetramethylbenzidine dihydrochloride hydrate,TMB dihydrochloride;TMB (hydrochloride hydrate);3,3\',5,5\'-tetraMethylbiphenyl-4,4\'-diaMine dihydrochloride hydrate (1:2:);3,3\',5,5\'-Tetramethyl-[1,1\'-biphenyl]-4,4\'-diamine hydrochloride hydrate

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Determination of melting point

   Instrument:

   Micro melting point apparatus WRS-2A, Melting point tubes

  Determination of step:

Open switch, stable 20min.

First set the starting temperature than the melting point of the low 10 ℃, heating rate 2 ℃ / min.

The sample was grind as fine as possible and load in a clean, dry melting point pipe ,until the sample was compressed into about 1cm high .When the actual temperature reaches the set temperature and stabilized . Inserted into the capillary with the sample, the simultaneous determination of three.

The determination of solubility

Weigh a certain amount of samples into test tube, add a certain amount of water, shake and dissolve, observe the solution.

The determination of Loss on drying

  Weigh a sample of approximately 2g (weighing accuracy 0.0001g),Record the weight of m,The sample was placed in a Petri dish constant weight (weight recorded as m0), the tile, the thickness of not more than 5mm, into the oven (As next dish cover removed) drying at 105-110 ℃ 3 hours.When removing, make sure the dish cover,be placed in a desiccator to cool, then weighed and the weight (including surface dish) m1.

Loss on drying in accordance with the following formula:

Where:

         m-- sample, g

       m0-- dish, g

          m1-- After drying the quality of the sample and the dish, g