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357
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2194
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1656
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1750
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245
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1520
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1135
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749
- The production of HEC involves chemical modification of cellulose through ethylene oxide, creating a non-ionic, water-soluble derivative. This process requires specialized technology and expertise, which only a select few manufacturers possess. Key players in the HEC manufacturing market include companies like Ashland, Shin-Etsu Chemical Co., Ltd., DuPont, and Kemira, among others.
- Medizin: in wässriger Lösung zur symptomatischen Behandlung des trockenen Auges („Künstliche Tränen“)
HPMC

hydroxypropyl methyl cellulose side effects.
Cellulose is a natural component of plants and occurs abundantly in the environment. The microbial degradation of cellulose and its derivatives (including ethyl cellulose) in the environment is expected. Therefore, the use of HPMC as a feed additive is considered safe for the environment.
3.2.5 Safety for user
The same applies to achieve the needed high viscosity together with an unobstructed (bubble-free) view through the media of the eye and an easy and simple injectability.