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24171-03-7 - 2,5-Diaminohydroquinone dihydrochloride, 97% - 2,5-Diamino-1,4-dihydroxybenzene dihydrochloride - B21969 - Alfa Aesar

B21969 2,5-Diaminohydroquinone dihydrochloride, 97%

CAS Number
2,5-Diamino-1,4-dihydroxybenzene dihydrochloride

Size Price ($) Quantity Availability
0.25g 45.04
1g 140.08
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2,5-Diaminohydroquinone dihydrochloride, 97%


Chemical Properties

Formula Weight
Melting point
Air Sensitive


2,5-Diaminohydroquinone dihydrochloride is used in the preparation of polymers, synthetically cross-linked polyimide and silica hybrid films.


Air sensitive. It may discolor to black-violet on storage. Store away from strong oxidizing agents, air.

Literature References

J. Szita and C. S. Marvel. Polymers derived from 2,5-diamino-p-benzoquinone-diimide and related compounds. Journal of Polymer Science Part A-1: Polymer Chemistry. 1969, 7 (11), 3203-3217.

Z. Ahmad; F. Al Sagheer; A. Al Arbash; A.A.M. Ali. Synthesis and characterization of chemically cross-linked polyimide-siloxane hybrid films. Journal of Non-Crystalline Solids. 2009, 355 (8), 507-517.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H315-H319-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P362-P301+P312-P312-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

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