CAPS CAS 1135-40-6 Purity >99.0% (T) Biological Buffer Ultra Pure Factory
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of CAPS (CAS: 1135-40-6) with high quality, commercial production. Ruifu can supply a series of biological buffers, can provide worldwide delivery, small and bulk quantities available. Welcomed to order. Please contact: alvin@ruifuchem.com
Chemical Name | CAPS |
Synonyms | 3-Cyclohexylaminopropanesulfonic Acid; N-Cyclohexyl-3-Aminopropanesulfonic Acid |
CAS Number | 1135-40-6 |
Stock Status | In Stock, Production Scale Up to Tons |
Molecular Formula | C9H19NO3S |
Molecular Weight | 221.32 |
Melting Point | >300 ℃(lit.) |
Density | 1.1809 |
Solubility in Water | Soluble in Water, Almost Transparency |
Absorbance | ≤0.20 (0.5 mol/L、H2O、260 nm) |
Stability | Stable. Incompatible with Strong Oxidizing Agents |
COA & MSDS | Available |
Origin | Shanghai, China |
Product Categories | Biological Buffers; Good's Buffering Agents |
Brand | Ruifu Chemical |
Item | Specifications |
Appearance | White Crystalline Powder |
Purity / Analysis Method | >99.0% (Titration by NaOH, Anhydrous Basis) |
Useful pH Range | 9.7~11.1 |
pKa (at 25℃) | 10.2~10.6 |
Water (by Karl Fischer) | <0.50% |
Loss on Drying | <0.50% |
Residue on Ignition | <0.10% |
Heavy Metals (as Pb) | ≤5ppm |
UV Absorbance | 260 nm A (0.5M aq.) ≤0.20 |
UV Absorbance | 280 nm A (0.5M aq.) ≤0.10 |
PH Value | 5.0~6.5 (1% Aqueous Solution) |
Solubility | Colorless Clear Solution (5% Maqueous Solution) |
Infrared Spectrum | Conforms to Structure |
Chloride (CI) | ≤0.005% |
Sulphate (SO4) | ≤0.005% |
Aluminum (Al) | ≤5 mg/kg |
Arsenic (As) | ≤0.1 mg/kg |
Barium (Ba) | ≤5 mg/kg |
Bismuth (Bi) | ≤5 mg/kg |
Calcium (Ca) | ≤10 mg/kg |
Cadmium (Cd) | ≤5 mg/kg |
Copper (Cu) | ≤5 mg/kg |
Iron (Fe) | ≤5 mg/kg |
Potassium (K) | ≤50 mg/kg |
Magnesium (Mg) | ≤5 mg/kg |
Manganese (Mn) | ≤5 mg/kg |
Molybdenum (Mo) | ≤5 mg/kg |
Sodium (Na) | ≤50 mg/kg |
Nickel (Ni) | ≤5 mg/kg |
Lead (Pb) | ≤5 mg/kg |
Test Standard | Enterprise Standard |
Grade | Ultra Pure |
Usage | Biological Buffer; Good's Buffer Component for Biological Research |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry and well-ventilated warehouse away from incompatible substances. Protect from light and moisture. Keep away from fire and heat source.
Shipping: Deliver to worldwide by air, by sea, by FedEx / DHL Express. Provide fast and reliable delivery.
Risk Codes
R36/38 - Irritating to eyes and skin.
R36/37/38 - Irritating to eyes, respiratory system and skin.
R22 - Harmful if swallowed
R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R40/22 -
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S37/39 - Wear suitable gloves and eye/face protection
S24/25 - Avoid contact with skin and eyes.
S22 - Do not breathe dust.
S23 - Do not breathe vapour.
S36 - Wear suitable protective clothing.
WGK Germany 3
RTECS TZ6395000
FLUKA BRAND F CODES 34
TSCA Yes
HS Code 2921300090
3-Cyclohexylaminopropanesulfonic Acid (CAS: 1135-40-6), also known as CAPS, is used as a biological buffer: CAPS is mainly used in biochemical diagnostic kits, DNA/RNA extraction kits and PCR diagnostic kits, as a buffer for enzymatic chemistry and HPLC separation of alkaline drugs. CAPS can also support alkaline phosphatase activity and inhibit the growth of Aeromonas at a pH of 10.5. It can also be dissolved in deionized water and adjusted to pH 11.0 for purification of fibronectin. CAPS needs better purity when used as a biological buffer, and generally requires analytical purity. When used in industry, the purity requirements are relatively low, but different treatments must be made for different applications.