ChemicalBook > CAS DataBase List > OPD EASY-tablets

OPD EASY-tablets

Product Name: OPD EASY-tablets
CAS No.: 615-28-1
Chemical Name: OPD EASY-tablets
Synonyms: OPD;OPD-HC1;OPD 2HCL;O-PD, HCL;OPD TABLET;usafek-678;SIGMAFAST? OPD;SIGMAFASTTM OPD;OPD EASY-tablets;OPD DIHYDROCHLORIDE
CBNumber: CB9853980
Molecular Formula: C6H10Cl2N2
Formula Weight: 181.06
MOL File: 615-28-1.mol

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OPD EASY-tablets Property

Melting point:: 258 °C (dec.)(lit.)
storage temp.: 2-8°C
solubility: H₂O: 1 tablet/10 mL, clear, colorless
form: tablet
color: white to off-white
PH: 1.5
Water Solubility: Slightly soluble in water; freely soluble in alcohol, chloroform or ether
BRN: 3912045
Stability:: Stable. Incompatible with strong oxidizing agents.
IARC: 2B (Vol. 123) 2020
EPA Substance Registry System: 1,2-Phenylenediamine dihydrochloride (615-28-1)

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Safety

Hazard Codes: Xn,N,T
Risk Statements: 22-40-43-51/53-68-50/53-36-25-20/21-36/37/38
Safety Statements: 36/37-61-60-45-28-26
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: ST0175000
F: 8-10-23
TSCA: Yes
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 29215190
Hazardous Substances Data: 615-28-1(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H317May cause an allergic skin reaction

H318Causes serious eye damage

H335May cause respiratory irritation

H341Suspected of causing genetic defects

H351Suspected of causing cancer

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: P8806
Product name: o-Phenylenediamine dihydrochloride
Purity: tablet, 3 mg substrate per tablet
Packaging: 50 tabs
Price: $218
Updated: 2025/07/31

Sigma-Aldrich

Product number: P8806
Product name: o-Phenylenediamine dihydrochloride
Purity: tablet, 3 mg substrate per tablet
Packaging: 100 tabs
Price: $379
Updated: 2025/07/31

Sigma-Aldrich

Product number: P8787
Product name: o-Phenylenediamine dihydrochloride
Purity: tablet, 4 mg substrate per tablet
Packaging: 50 tabs
Price: $236.54
Updated: 2025/07/31

Sigma-Aldrich

Product number: P8787
Product name: o-Phenylenediamine dihydrochloride
Purity: tablet, 4 mg substrate per tablet
Packaging: 100 tabs
Price: $415
Updated: 2025/07/31

Sigma-Aldrich

Product number: P8412
Product name: o-Phenylenediamine dihydrochloride
Purity: tablet, 30 mg substrate per tablet
Packaging: 50 tabs
Price: $269.81
Updated: 2025/07/31

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OPD EASY-tablets Chemical Properties,Usage,Production

Chemical Properties

white to light pink powder

Uses

o-Phenylenediamine is a peroxidase substrate suitable for use in ELISA procedures. The substrate produces a soluble end product that is orange-brown in color and can be read spectrophotometrically at 450 nm. The OPD reaction may be stopped with 3 N HCl or 3 M H₂SO₄ and read at 492 nm.

Uses

o-Phenylenediamine dihydrochloride has been used as a substrate for horseradish-peroxidase-conjugated secondary antibody in enzyme-linked immunosorbent assay (ELISA).

General Description

Brownish-yellow crystals. Slightly soluble in water. Used in the manufacture of dye.

Air & Water Reactions

Slightly soluble in water.

Reactivity Profile

Acidic organic/inorganic salts, such as OPD EASY-tablets, are generally soluble in water. The resulting solutions contain moderate to high concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Purification Methods

Crystallise the salt from dilute HCl (60mL conc HCl, 40mL water, with 2g stannous chloride), after treatment of the hot solution with charcoal by adding an equal volume of conc HCl and cooling in an ice-salt mixture. The crystals are washed with a small amount of conc HCl and dried in a vacuum desiccator over NaOH. [Beilstein 13 IV 38.]

OPD EASY-tablets Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from OPD EASY-tablets manufacturers

Career Henan Chemical Co

Product: OPD EASY-tablets 615-28-1
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98% HPLC
Supply Ability: 10 tons
Release date: 2020-03-04

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