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4 cqa

Manufactured by Chengdu Must Bio-Technology
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Sourced in China

4-CQA is a chemical compound that functions as a standard analytical reference material. It is commonly used in research applications to identify and quantify the presence of this compound in various samples.

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Lab products found in correlation

3 cqa, by Chengdu Must Bio-Technology (2 mentions) 5 cqa, by Chengdu Must Bio-Technology (2 mentions) Puerarin, by Chengdu Must Bio-Technology (1 mentions) Epigallocatechin gallate (egcg), by Chengdu Must Bio-Technology (1 mentions) Hplc grade methanol, by Thermo Fisher Scientific (1 mentions) 4 5 dicqa, by Chengdu Must Bio-Technology (1 mentions)

2 protocols using 4 cqa

1

Procurement of Bioactive Compounds

Check if the same lab product or an alternative is used in the 5 most similar protocols
Puerarin (≥99.71%), 3-CQA (≥99.37%), 4-CQA (≥99.39%), 5-CQA (≥99.07%) and EGCG were purchased from Chengdu Must Biotechnology Co., Ltd (Chengdu, China). Methanol and acetonitrile for HPLC were obtained from Scharlau Co., Ltd (Barcelona, Spain). AA was purchased from Shanghai Aladdin Biochemical Technology Co., Ltd (Shanghai, China). All other chemicals were of analytical grade and obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China).
Wang D., Liu J., Qiu S., Wang J., Song G., Chu B., Li L., Xiao G., Gong J, & Zheng F. (2021). Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability. Ultrasonics Sonochemistry, 80, 105812.
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2

Quantification of Chlorogenic Acid Derivatives

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Methanol (HPLC grade) was obtained from Thermo Fisher Scientific (Pittsburgh, PA, USA). Formic acid was bought from Dimka Pure (Richmond Hill, NY, USA). Purified water was purchased from the Hangzhou Wahaha Group (Hangzhou, China). Others reagents and chemicals were all of analytical grade. The reference standards of CA, 3-CQA, 4-CQA, 5-CQA, 1,3-diCQA, 1,5-diCQA, 4,5-diCQA, 1,3,5-tirCQA were purchased from Chengdu Must Bio-technology Co.; Ltd. (Chengdu, China). The chemical structures of the eight reference compounds were determined to be higher than 98%.
Jiang H., Yang L., Xing X., Yan M., Guo X., Yang B., Wang Q, & Kuang H. (2018). HPLC-PDA Combined with Chemometrics for Quantitation of Active Components and Quality Assessment of Raw and Processed Fruits of Xanthium strumarium L.. Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry, 23(2), 243.
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