USD $2,000.00-2,000.00 / Metric Ton
USD $1.00-10.00 / Kilogram
USD $15.00-20.00 / Gram
high purity, competitive price!
providing hplc, ms, hnmr, coa. in stock!
sichuan weikeqi biological technology co., ltd. was established in 2006. we are located in chengdu city, sichuan province, a professional company engaged in researching, developing and selling natural medicine purification separation of traditional chinese medicine reference standard production.
our mature technology of purification and separation as follow: series of licorice, ginseng, scurfpea fruit, tripterygium wilfordii, ginkgo, astragalosides, radix scutellariae, radix bupleuri, spaina date seed, rhizoma paridis, fructus schisandrae, radix et rhizoma rhei, danshen root, thinleaf milkwort root-bark, etc.
reference substance/standard for the quality research of new medicine.
name:7,8-dihydroxy-4-phenylcoumarin
cas:842-01-3
storage: 2-8°c,keep container tightly closed in a dry and well-sealed place, out of sunlight
package: 20mg 50mg 100mg 500mg 1g 2g, or customized.
application: used for content determination, identification, pharmacological experiment, activity screening, etc.
company: sichuan weikeqi biological technology co.
also providing ,7-dihydroxy-4-(hydroxymethyl)coumarin
4-chloromethyl- 6,7-dihydroxycoumarin
8-dimethylaminomethyl esculetin
5-dimethylaminomethyl esculetin
4-methyl-8-dimethylaminomethyl esculetin
4-methyl-8-piperidinylmethyl esculetin
4-cf3-8-pyrrolidinylmethyl esculetin