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Molecular sieves, 4A with indicator, -8+12 (ca 2mm) beads
CAS: 70955-01-0 | C20H25FN2O8 | 440.42 g/mol
Brand: Thermo Scientific Alfa Aesar 032256.30
Quantity | 250 g |
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Description
Molecular sieves, 4 Å… is used to absorb molecules as large as butane. It is utilized for the separation of natural gas, liquefied petroleum gas (LPG) and alkenes. It finds application in the refining and purification of liquid and gases. It is also used for drying and purification of air, inert gases and solvents. It is actively involved to remove methanol, carbon dioxide and ammonia from fluid streams. It plays a vital role to remove heavy metal ions available in water. It is also used as a soap forming agent and as a detergent auxiliary. It has been considered as a general-purpose drying agent in polar and non polar media.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Chemical Identifiers
70955-01-0 | |
440.42 | |
FJUZEZRZKVMAMD-UHFFFAOYNA-N | |
(2R,3S)-2-[[(2R)-2-acetamido-3-(3-fluorophenyl)propanoyl]amino]-5-methoxy-4-methoxycarbonyl-3-methyl-5-oxopentanoic acidShow More |
C20H25FN2O8 | |
MFCD00131613 | |
73906282 | |
COC(=O)C(C(C)C(NC(=O)C(CC1=CC(F)=CC=C1)NC(C)=O)C(O)=O)C(=O)OC |
Specifications
Blue | |
Odorless | |
250 g | |
-8+12 Beads | |
MFCD00131613 | |
Insoluble in cold water,hot water,methanol,diethyl ether,n-octanol and acetone. | |
COC(=O)C(C(C)C(NC(=O)C(CC1=CC(F)=CC=C1)NC(C)=O)C(O)=O)C(=O)OC | |
440.42 | |
Molecular sieves 4A with indicator, −8+12 (≈ 2mm) beads |
−8+12 Mesh | |
Hygroscopic | |
70955-01-0 | |
C20H25FN2O8 | |
UN3077 | |
FJUZEZRZKVMAMD-UHFFFAOYNA-N | |
(2R,3S)-2-[[(2R)-2-acetamido-3-(3-fluorophenyl)propanoyl]amino]-5-methoxy-4-methoxycarbonyl-3-methyl-5-oxopentanoic acid | |
73906282 |
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Safety and Handling
- Molecular sieves, 4A with indicator, -8+12 (ca 2mm) beads
Signal Word
- Danger
Hazard Category
- LONG-TERM AQUATIC HAZARD Chronic 3
- Carcinogenicity Category 1B
- Reproductive toxicity Category 1B
Hazard Statement
- H350i-May cause cancer by inhalation.
- H360F-May damage fertility.
- H412-Harmful to aquatic life with long lasting effects.
Precautionary Statement
- P201-Obtain special instructions before use.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P308+P313-IF exposed or concerned: Get medical advice/attention.
Supplemental information
- MIXTURE LIST-Contains : Cobalt chloride
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
M21L046 | Certificate of Analysis | 23/01/2025 | 032256.A1,032256.30,032256.A7 |
N06E013 | Certificate of Analysis | 25/11/2024 | 032256.A1,032256.30,032256.A7 |
Y20B038 | Certificate of Analysis | 25/11/2024 | 032256.A1,032256.30,032256.A7 |
X15K019 | Certificate of Analysis | 30/10/2024 | 032256.A1,032256.30,032256.A7 |
S24K015 | Certificate of Analysis | 19/07/2024 | 032256.A1,032256.30,032256.A7 |
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