Molekula
CAPS
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
CAPS is a buffering agent commonly used in biochemical and molecular biology applications to maintain stable pH conditions. It is particularly effective in the pH range of 9.7 to 11.4. Available with a CAS number of 1135-40-6, its molecular formula is C6H11NH(CH2)3SO3H and molecular weight is 221.32 g/mol. It is stable at ambient storage conditions and has no signal word. Molekula supplies CAPS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $43.70 per pack
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100 g — $70.90 per pack
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500 g — $192.10 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | SOLID |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 24971012 |
| CAS Number | 1135-40-6 |
| IUPAC Name | 3-(cyclohexylamino)propane-1-sulfonic acid |
| EC Number | 214-492-1 |
| Molecular Formula | C6H11NH(CH2)3SO3H |
| Molecular Weight | 221.32 |
| Exact Mass | 221.1086 |
| SMILES | C1CCC(CC1)NCCCS(=O)(=O)O |
| InChIKey | PJWWRFATQTVXHA-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H19NO3S/c11-14(12,13)8-4-7-10-9-5-2-1-3-6-9/h9-10H,1-8H2,(H,11,12,13) |
| PubChem CID | 70815 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29213030 |
| Tariff Code | 2921309990 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-Propanesulfonic acid, 3-(cyclohexylamino)-
- 3-(Cyclohexylamino)-1-propanesulfonic acid
- 3-(cyclohexylamino)propane-1-sulfonic acid
- 3-(Cyclohexylamino)propanesulfonic acid
- 3-CYCLOHEXYL-1-PROPYLSULFONIC ACID
- 3-Cyclohexylaminopropane-1-sulphonic acid
- CAPS acid
- CXS
- Cyclohexylaminopropanesulfonic acid
- N-Cyclohexyl-3-aminopropanesulfonic acid
Frequently asked questions
What is CAPS used for?
CAPS is commonly used as a buffering agent in biochemical and molecular biology applications, particularly in electrophoresis and protein purification.
What is the chemical formula and molecular weight of CAPS?
The formula is C6H11NH(CH2)3SO3H with a molecular weight of 221.32 g/mol.
How should CAPS be stored?
CAPS should be stored at ambient temperature, protected from moisture and light.
What grade of CAPS does Molekula supply?
Molekula supplies CAPS in high-purity grade suitable for research and laboratory use.
Can Molekula supply CAPS in bulk?
Yes, Molekula can supply CAPS in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a CAPS order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.