| (1) O-Methylsalicylic acid
Molecular Formula:C8H8O3
Structural Formula:
Quality Index:
content |
≥99% |
melting point |
≥164°C |
moisture |
≤0.5% |
ash content |
≤0.3% |
O-methyl |
≤0.15% |
(2)M-Methylsalicylic acid
Molecular Formula:C8H8O3
Structural Formula:
Quality Index:
content |
≥99% |
melting point |
174°C～176°C |
moisture |
≤0.5% |
ash content |
≤0.3% |
M-methyl |
≤0.15% |
(3) Methyl o-methylsalicylate
Molecular Formula:C9H10O3
Structural Formula:
Quality Index:
appearance |
straw yellow oiliness liquid |
content |
≥98% |
moisture |
≤0.2% |
acidity |
≤0.1% |
(4) Methyl m-methylsalicylate
Molecular Formula:C9H10O3
Structural Formula:
Quality Index:
appearance |
straw yellow oiliness liquid |
content |
≥98% |
moisture |
≤0.2% |
acidity |
≤0.1% |
(5) 4-Dimethylamino pyridine
Molecular Formula: C7H10N2
Molecular Weight: 122.17
Structural Formula:
CAS NO.:1122-58-3
Quality Specification:
Item |
Spec. |
Appearance |
white crystal or similar to white crystal |
Drying Loss |
≤0.3% |
Assay |
≥99% |
M.P. |
110-114°C |
Water Insolubles |
≤0.1% |
B.P. |
162 ℃ (50mmHg) |
Flash Point |
230 °C |
Solubility |
soluble in water, ethanol, acetone, benzene, toluene, xylene, dichloroethane, chloroform, acetic acid, ethyl acetate, tetrahydrofuran, triethylamine, pyridine, DMF etc. |
Applications:
Use: It is a new type high efficiency acylation catalyst with very wide range of applications.
It is used in acylation, alkylation, etherification, esterification of organic synthesis, drug synthesis, pesticides, pharmaceuticals, dyes, perfumes, polymer chemistry and analytical chemistry etc. It is the most commonly used catalyst in organic synthesis.
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