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Systematic (IUPAC) name
Pharmacokinetic data
Excretion urine
CAS Number 886-74-8
ATC code D01AE07 (WHO)
PubChem CID 2724
ChemSpider 2623
Chemical data
Formula C10H12ClNO4
Molar mass 245.660 g/mol[[Script error: No such module "String".]]
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Physical data
Melting point 86 to 92 °C (187 to 198 °F)
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Chlorphenesin (Maolate, Musil) is a centrally acting muscle relaxant used to treat muscle pain and spasms.[1][2]

It also has antifungal and some antibacterial properties and is thus classified as an antifungal for topical use by the WHO.[3]


The adverse effects from this preservative on skin is allergic contact sensitivity.[4][5]

Physical Properties

Melting Point

86-92 deg. Celsius[6]


  1. Okuyama S, Aihara H. Antinociceptive effect of chlorphenesin carbamate in adjuvant arthritic rats. Research Communications in Chemical Pathology and Pharmacology. 1987 Feb;55(2):147-60. PMID 3823606
  2. Kurachi M, Aihara H. Effect of a muscle relaxant, chlorphenesin carbamate, on the spinal neurons of rats. Japanese Journal of Pharmacology. 1984 Sep;36(1):7-13. PMID 6503049
  3. ATC code D01AE07
  4. Brown R (1981). "Chlorphenesin sensitivity". Contact Dermatitis. 7 (3): 162. doi:10.1111/j.1600-0536.1981.tb04601.x. PMID 6456118. 
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  6. Salim, E.F.; Booth, R.E. (1967). "Qualitative and quantitative tests for chlorphenesin carbamate". Journal of Pharmaceutical Sciences. 56 (5): 623. doi:10.1002/jps.2600560516. Retrieved 2009-06-23.