CAPS
CAPS (CAS 1135-40-6), molecular formula C6H11NH(CH2)3SO3H, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- 3-(Cyclohexylamino)-1-propanesulfonic acid

| Molecular weight | 221.32 |
|---|---|
| Linear formula | C6H11NH(CH2)3SO3H |
| Assay | ≥98.0% |
| Solubility | H2O: soluble0.5 M at 20 °C, clear, colorless |
| pH | 3.5-6.0 (25 °C, 0.5 M in H2O) |
| Loss on drying | ≤1% loss on drying, 110 °C |
| Impurities tested | insoluble matter, passes filter test |
| Melting point | >300 °C(lit.) |
| Protective equipment | Eyeshields, Faceshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Anion traces | chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤150 mg/kg |
| Ignition residue | ≤0.05% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Pka 25 °C | 10.4 |
|---|---|
| Pka  | 10.4 |
| Market Segment | Diagnostic Assay Manufacturing |
| Uv Absorption | λ: 260 nm Amax: 0.04λ: 280 nm Amax: 0.04 |
| Ph Range | 9.7 - 11.1 |
| Useful Ph Range | 9.7 - 11.1 |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is CAPS?
+
CAPS (CAS 1135-40-6), molecular formula C6H11NH(CH2)3SO3H, is a high-purity chemical supplied by Tech Serve Solutions for biochemicals & reagents applications, to USP, BP and EP standards.
What grades of CAPS does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies CAPS in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of CAPS?
+
CAPS has CAS number 1135-40-6 and molecular formula C6H11NH(CH2)3SO3H. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for CAPS?
+
Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
+
Yes. Every batch of CAPS ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should CAPS be stored?
+
Store CAPS in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is CAPS used for?
+
CAPS is used in biochemicals & reagents applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for CAPS?
+
Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
▶ Related products
![(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F138472-01-2.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide
C8H13N3O4
Biochemicals & Reagents![(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F162626-99-5.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide
C14H18N4O4
Biochemicals & Reagents
(±)-2,5-Dimethoxy-4-bromoamphetamine hydrobromide
Biochemicals & Reagents

(±)-2-(p-Methoxyphenoxy)propionic acid
C10H12O4
Biochemicals & Reagents
(±)-2-Amino-6,7-dihydroxy-1,2,3,4-tetrahydronaphthalene hydrobromide
2
Biochemicals & Reagents
(±)-2-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxyoctanoic acid
C8H16O3
Biochemicals & Reagents


