C9H19NO3S
221.32 g/mol
Research ReagentWarning
CAPS
CAS1135-40-6EC214-492-1
Category
Research Reagent
Compound Class
Amine
Primary Use
Research Compound
CAPS is a chemical compound commonly used as a biological buffer in laboratory and research settings. Its structure includes a cyclohexylamine group and a sulfonic acid moiety, contributing to its buffering capacity.
Biological buffer
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for CAPS (CAS 1135-40-6) is 2921.30.
HS code (international, 6-digit)
2921.30
EU CN code (8-digit)
2921 30 99
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3-(cyclohexylamino)propane-1-sulfonic acid
InChIKey
PJWWRFATQTVXHA-UHFFFAOYSA-N
SMILES
C1CCC(CC1)NCCCS(=O)(=O)O
Synonyms (17)
- CAPS
- CXS
- CAPS acid
- CAPS, BioUltra, >=99.0% (TLC)
- CAPS, BioXtra
- CAPS, Vetec(TM) reagent grade
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