Butyl Paraben
■ Chemical Description
-- Butyl P-hydroxybenzoate, Butyl Paraben
■ CAS No. 94-26-8
■ Molecular and Structural Formula C11H14O3
■ Characteristics
--White crystalline with special smell;
--Easily dissolved in alcohol, ether and chloroform, but difficult dissolved in water;
■ Specification
No |
Tests |
Specification |
||
Q/SH 010-2004 |
USP 29-NF24 |
BP 2000 |
||
1 |
Characters |
/ |
/ |
Colorless crystals or white crystalline powder |
2 |
Purity (on dry base) % |
≥99.0 |
99.0-100.5 |
99.0-100.5 |
3 |
Melting Point oC |
67.5-69 |
68-72 |
69-72 |
4 |
Acidity |
qualified |
qualified |
qualified |
5 |
Sulfate(SO42-) % |
≤0.024 |
|
/ |
6 |
Heavy Metal(Pb) % |
≤0.001 |
|
/ |
7 |
Heavy Metal(AS) % |
≤0.0001 |
|
/ |
8 |
Loss on Drying % |
≤0.50 |
≤0.50 |
≤0.50 |
9 |
Residue % |
≤0.10 |
≤0.05 |
≤0.05 |
10 |
p-Hydroxybenzoic Acid and Salicylic Acid |
≤0.10 |
/ |
/ |
11 |
Appearance of Solution |
/ |
/ |
Clear |
12 |
Identification |
/ |
qualified |
/ |
13 |
Organic Volatile impurities |
/ |
qualified |
/ |
14 |
Related Substances |
/ |
/ |
qualified |
■ Application
--Used as intermediates of organic synthesis as well as antiseptics for medicine, foodstuff, cosmetics and films;
■ Packaging and Storage
--Packed in 25, 50 kg fiber or plastic drum, inner lined with PE bags;
--Stored in dry place at room temperature;
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