Chemical

Description

CAS number: 71-36-3
Chemical Formula: CH₃(CH₂)₃OH
Molar Mass: 74.12 g/mol
Synonyms: Butan-1-ol, n-Butyl alcohol, BuOH

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in “gradient grade” as well as “isocratic grade”. This enables to minimize the gradient effect of the solvent involved. Filtered by 0.2 µm filter

Description

CAS number: 71-23-8
Chemical Formula: CH₃CH₂CH₂OH
Molar Mass: 60.1 g/mol
Synonyms: n-Propyl alcohol, Propan-1-ol

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in “gradient grade” as well as “isocratic grade”. This enables to minimize the gradient effect of the solvent involved. Filtered by 0.2 µm filter.

Description

CAS Number: 67-63-0
Chemical Formula: CH₃CH(OH)CH₃
Molecular Weight: 60.1 g/mol
Synonyms: Isopropyl alcohol, Isopropanol, iso-Propanol, IPA
Quality Level: MQ200

Product Specification and MSDS for 2-propanol (Merck).

Description

CAS number: 67-63-0
Chemical Formula: CH₃CH(OH)CH₃
Molar Mass: 60.1 g/mol
Synonyms: Isopropyl alcohol, Isopropanol, iso-Propanol, IPA

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in “gradient grade” as well as “isocratic grade”. This enables to minimize the gradient effect of the solvent involved. Filtered by 0.2 µm filter

Description:

CAS number: 3682-35-7
Chemical Formula: C18H12N6
Molar Mass: 312.33 g/mol
Synonyms: 2,4,6-Tri(2-pyridyl)-s-triazine, TPTZ

General description

2,4,6-Tris(2-pyridyl)-s-triazine is a Case and Koft compound generally used in the determination of iron in a colourimetric analysis. This reagent is for the spectrophotometric determination of Fe(II) and of total Fe.

Description:

CAS number: 937-14-4
Chemical Formula: ClC6H4CO3H
Molar Mass: 172.57 g/mol
Synonyms: 3-Chloroperoxybenzoic acid, meta-Chloroperbenzoic acid, MCPBA

General description

3-Chloroperbenzoic acid is a strong oxidizing agent mainly used for the epoxidation of alkenes and also in the Baeyer-Villiger oxidation of ketones to esters.

Application

3-Chloroperbenzoic acid has been used in the oxidation of N–p-tolylsulfinyl-(E)-1-phenylethylideneimine to N–p-tolylsulfonyl (E)-1-phenylethylideneimine using dichloromethane as a solvent. It has also been used in the preparation of mono- and di-epoxy-functionalized poly(3-hydroxybutyrate)-based reactive polymers. MCPBA is also an effective oxidizing agent for the conversion of α-amide substituted polyesters to their corresponding polysulfones with tunable thermal properties.

Effective oxidant for epoxidizing di-, tri-, and tetra-substituted olefins.

Description

CAS number: 2635-84-9
Chemical Formula: C10H11NO4
Molar Mass: 209.20 g/mol
Synonyms: p-Nitrophenyl butyrate, Butyric acid 4-nitrophenyl ester

General description

4-Nitrophenyl butyrate is a substrate for esterase, and lipase enzyme. Hydrolysis of 4-nitrophenyl butyrate by these enzymes releases the chromophore, 4-nitrophenolate which is spectrophotometrically analysed at 415 nm.

Application

4-nitrophenyl butyrate has been used:
• as a substrate for esterase activity in monocyte-derived macrophage cell line in response to polyethylene
• as a substrate for mycobacterial phospholipase A and mycobacterial cutinase activity
• as a substrate to determine the effect of buffers and solvents on human carboxylesterase

Description

Synonyms: Salt, Halite
Formula: NaCl

5M NaCl is a colorless liquid that is commonly used in many molecular biology and forensic applications. For example, it is used to precipitate nucleic acids during the extractions.

Description

CAS number: 67-64-1
Chemical Formula: CH₃COCH₃
Molar Mass: 58.08 g/mol
Synonyms: Dimethyl ketone, Propanone, 2-Propanone

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in “gradient grade” as well as “isocratic grade”. This enables to minimize the gradient effect of the solvent involved. Filtered by 0.2 µm filter.

Description

CAS number: 75-05-8
Chemical Formula: CH₃CN
Molar Mass: 41.05 g/mol
Synonyms: ACN, Methyl cyanide, Ethyl nitrile, Cyanomethane

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in “gradient grade” as well as “isocratic grade”. This enables to minimize the gradient effect of the solvent involved. Filtered by 0.2 µm filter. Suitable for UPLC / UHPLC /Ultra HPLC – instruments.

Description

HS Code: 3002 12 00
Quality level: MQ100
Coagulase:
– Staphylococcus aureus ATCC 25923 (WDCM 00034): Positive (+)
– Staphylococcus epidermidis ATCC 12228 (WDCM 00036): Negative (-)
– Negative control: Negative (-)

Description

CAS number: 77-79-2
Chemical Formula: C4H6O2S
Molar Mass: 118.15 g/mol
Synonyms: 2,5-Dihydrothiophene-1,1-dioxide, 3-Sulfolene

Description

Formula: CaCl₂ · 2H₂O

In cell culture laboratory, calcium chloride dihydrate is used as a calcium supplement in DMEM. It can also be used to prepare synthetic brine solution. In addition, it can also be used as a desiccant.

Note:

AR: Analitycal Reagent Grade: Reagents for analytical purpose or research work that need high purity.
CP: Chemically Pure Grade: Reagents for regular practical in its original purity.

CAS no.: 10124-37-5, 7697-37-2
Traceability: Traceable to SRM from NIST Ca(NO₃)₂ in HNO₃ 0.5 mol/l 1000 mg/l Ca Certipur®
Synonym: –
Quality level: MQ300
Product specification and SDS for Calcium Standard Solution.

Description

CAS number: 57-09-0
Chemical Formula: C₁₉H₄₂BrN
Synonyms: Cetrimide, CTAB
Purity: ≥98% by TLC
Contaminants: DNases, proteases, RNases: none detected

Cationic detergent is suitable for the isolation of high molecular weight DNA in plants and other organisms.

Product Specification and MSDS for Cetyltrimethylammonium Bromide for Molecular (Merck).

Description:

CAS number: 9012-76-4
Synonyms: Deacetylated chitin, Poly(D-glucosamine)

General description

Chitosan may be used as a flocculant, in protein precipitation, encapsulating agent and aqueous thickener.

Forms gels with multivalent anions. Gives clear solutions that dry to strong, clear films.

Features and Benefits

Biocompatible, antibacterial and environmentally friendly polyelectrolyte with a variety of applications including water treatment, chromatography, additives for cosmetics, textile treatment for antimicrobial activity, novel fibres for textiles, photographic papers, biodegradable films, biomedical devices, and microcapsule implants for controlled release in drug delivery.

Application

HPLC: suitable
Gas Chromatography (GC): suitable

Description

Synonym: Cholesterol Assay Kit

General description

Cholesterol is an important component of mammalian cell membranes where it functions in intracellular transport, cell signalling, and maintaining membrane fluidity. Within the blood, cholesterol circulates as both the free acid and as cholesterol esters. Controlling serum cholesterol has an important therapeutic role as elevated cholesterol levels are associated with the development of atherosclerosis and cardiovascular pathologies. Recent evidence suggests a disturbance of cholesterol homeostasis contributes to the development of a chronic inflammatory state.

Cholesterol is predominantly produced in the liver. Abnormal cholesterol levels are implicated in coronary heart disease. Cholesterol is associated with breast cancer progression or inhibition. Tumour cells are capable of synthesizing their own cholesterol, which aids in cell proliferation. Increased cholesterol level is observed in cancers, especially in prostate cancer. Elevated serum cholesterol is observed in obesity.

Application

Cholesterol Quantitation Kit has been used to measure the total serum cholesterol level.

Suitability

Suitable for use with cell and tissue culture samples, urine, plasma, serum, and other biological samples.

Principle

The Cholesterol Quantitation Kit can also be used to determine the concentration of free cholesterol, cholesteryl esters, or both (total) present in a sample. In this kit, total cholesterol concentration is determined by a coupled enzyme assay, which results in a colorimetric (570 nm)/fluorometric (λ_ex = 535/λ_em = 587 nm) product, proportional to the cholesterol present.