7-Dehydrocholesterol CAS 434-16-2

CAS:434-16-2 : kuv

Molecular Formula:C27 H44 O

Molecular Luj:384.64 ib

EINECS:207-100-5 ib

Synonyms:Dehydrocholesterin; Dehydrocholesterol; delta (sup5,7) - cov cholesterol; delta (sup7) - cov cholesterol; DELTA5,7-Cholestadien-3beta-ol; delta5,7-Cholesterol; 5,7-Cholestandien-3.beta.-ol; 5,7-Cholestandien-3beta-ol; 7,8-Didehydrocholesterol

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7-Dehydrocholesterol CAS 434-16-2 yog dab tsi?

7-Dehydrocholesterol yog cov hmoov dawb crystalline hmoov, lub teeb daj crystalline hmoov, cais thiab muab rho tawm ntawm daim tawv nqaij npua. Nws tseem tuaj yeem tau txais los ntawm esterification, bromination, tshem tawm, thiab hydrolysis ntawm cov cholesterol. Melting point 150-151 ℃ (anhydrous). [α] 20 / D-113.6 ° (chloroform). Tshaj tawm rau huab cua yog nquag oxidation. Ib tug kws tshuaj intermediate synthesized los ntawm saponification cov tshuaj tiv thaiv ntawm 7-dehydrocholesterol. 7-dehydrocholesterol (7-DHC) yog 5,7-conjugated diene sterol thiab ua ntej rau cov roj cholesterol biosynthesis

Specification

Yam khoom	Specification
Boiling point	451.27°C (kev kwv yees)
Qhov ntom	0.9717 (zeeg)
Melting point	148-152 ° C (lit.)
Cia tej yam kev mob	-20 ° C
tiv taus	1.5100 (kwv yees)

Daim ntawv thov

7-Dehydrocholesterol feem ntau yog siv los ua ib qho tseem ceeb nruab nrab rau kev sib txuas ntawm vitamin D3 thiab ua ib qho ntxiv hauv kev tu tawv nqaij, tiv thaiv tshav ntuj, thiab tshuaj pleev ib ce. 7-dehydrocholesterol (7-DHC) yog 5,7-conjugated diene sterol thiab ua ntej rau cov roj cholesterol biosynthesis. Thaum raug ultraviolet B (UVB) hluav taws xob, nws txhawb kev tsim cov vitamin D3. 7-dehydrocholesterol yog cov txheej txheem sab hauv rau kev txiav txim siab ntawm cov sterols thiab tseem siv los ua lwm yam tshuaj reagents.