| 摘要 |
The cholesterol derivative, represented by the following formula (1): wherein R represents a C3-C23 saturated or unsaturated aliphatic hydrocarbon residue having an optional substituent, and, to the cholesterol backbone, -OH, -CHO, -COOH, -OOH, or an epoxy group may be added, specifically binds to beta2-glycoprotein. By use of the derivative, beta2-glycoprotein or a similar substance can be assayed in a very practical manner. Through the assay, a disease can be detected in a very practical manner.
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