A fish anesthetic
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Product Type

Biochemicals

Research Area

Neuroscience

Ethyl 3-Aminobenzoate (methanesulfonate)

Item No. 20660

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
3-amino-benzoic acid-ethyl ester, monomethanesulfonate
CAS Number
886-86-2
Synonyms
  • Ethyl m-Aminobenzoate
  • NSC 93790
  • MS-222
Molecular Formula
C9H11NO2 • CH4O3S
Formula Weight
261.3
Purity
≥95%
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: 30 mg/mlDMSO: 30 mg/mlEthanol: 25 mg/mlPBS (pH 7.2): 5 mg/ml
λmax
222, 323 nm
SMILES
O=C(OCC)C1=CC(N)=CC=C1.O=S(O)(C)=O
InChi Code
InChI=1S/C9H11NO2.CH4O3S/c1-2-12-9(11)7-4-3-5-8(10)6-7;1-5(2,3)4/h3-6H,2,10H2,1H3;1H3,(H,2,3,4)
InChi Key
FQZJYWMRQDKBQN-UHFFFAOYSA-N
Shipping & Storage Information
Storage
Room temperature
Shipping
Room temperature in continental US; may vary elsewhere
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Certificates of Analysis & Batch Specific Data

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    10 g

    $44

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    25 g

    $83

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    50 g

    $142

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    100 g

    $240

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    Product Description

    Ethyl 3-aminobenzoate (methanesulfonate), a hydrophilic derivative of benzocaine (Item No. 20132), is an anesthetic used by hatcheries and in research studies to immobilize fish for marking, transport, or to suppress sensory systems during invasive procedures such as the implantation of electronic tags.1,2

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Carter, K.M., Woodley, C.M., and Brown, R.S. A review of tricaine methanesulfonate for anesthesia of fish. Rev. Fish Biol. Fisheries 21(1), 51-59 (2011).

    2. Ramlochansingh, C., Branoner, F., Chagnaud, B.P., et al. Efficacy of tricaine methanesulfonate (MS-222) as an anesthetic agent for blocking sensory-motor responses in Xenopus laevis tadpoles. PLoS One 9(7), e101606 (2014).