21343-40-8
中文名稱
25-羥麥角甾醇
英文名稱
25-HYDROXYVITAMIN D2
CAS
21343-40-8
分子式
C28H44O2
MDL 編號
MFCD02683431
分子量
412.65
MOL 文件
21343-40-8.mol
更新日期
2026/06/04 17:15:55
21343-40-8 結(jié)構(gòu)式
基本信息
中文別名
25-羥麥角甾醇25-羥基維生素 D2
英文別名
25-hydroxyvitamind25-hydroxycalciferol
(E,3S,6S)-6-[(1R,3aR,4E,7aS)-4-[(2Z)-2-[(5S)-5-hydroxy-2-methylidene-cyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-2,3-dimethyl-hept-4-en-2-ol
25-hydoxyergocalciferol
3-{2-[1-(5-Hydroxy-1,4,5-trimethyl-hex-2-enyl)-7a-methyl-octahydro-inden-4-ylidene]-ethylidene}-4-methylene-cyclohexanol ( 25-Hydroxyvitamin D2 )
25-Hydroxycalciferol, 25-Hydroxyergocalciferol
(5Z,7E,22E)-25-Hydroxy-9,10-secoergosta-5,7,10(19),22-tetren-3β-ol
(5Z,7E,22E)-9,10-Secoergosta-5,7,10(19),22-tetrene-3β,25-diol
Ercalcidiol
所屬類別
分析化學(xué)：標(biāo)準(zhǔn)物質(zhì)物理化學(xué)性質(zhì)
熔點(diǎn)45-51°C
沸點(diǎn)542.3±38.0 °C(Predicted)
密度1.02±0.1 g/cm3(Predicted)
閃點(diǎn)14℃
儲存條件−20°C
溶解度Limited solubility, soluble in DMSO or ethanol
酸度系數(shù)(pKa)14.74±0.20(Predicted)
形態(tài)白色結(jié)晶性粉末。
顏色White to off-white
生物來源synthetic
BRN4716773
穩(wěn)定性對光敏感、對溫度敏感
InChIKeyKJKIIUAXZGLUND-ICCVIKJNSA-N
SMILES[C@H]1(O)CCC(=C)/C(=C\C=C2/CCC[C@@]3(C)[C@@]/2([H])CC[C@@H]3[C@H](C)/C=C/[C@H](C)C(O)(C)C)/C1
CAS 數(shù)據(jù)庫21343-40-8(CAS DataBase Reference)
安全數(shù)據(jù)
警示詞危險(xiǎn)
危險(xiǎn)性描述H225-H319
危險(xiǎn)品標(biāo)志T+,F
危險(xiǎn)類別碼24/25-26-48/25-11
安全說明28-36/37-45-16-7
危險(xiǎn)品運(yùn)輸編號UN2811 6.1/PG 2
WGK Germany3
存儲類別6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
very toxic hazardous materials
危險(xiǎn)性類別Acute Tox. 2 Inhalation
Acute Tox. 3 Dermal
Acute Tox. 3 Oral
STOT RE 1 Oral
Acute Tox. 3 Dermal
Acute Tox. 3 Oral
STOT RE 1 Oral
25-羥基維生素D2 價(jià)格(試劑級)
| 報(bào)價(jià)日期 | 產(chǎn)品編號 | 產(chǎn)品名稱 | CAS號 | 包裝 | 價(jià)格 |
| 2026/06/05 | HY-32349R | 25-羥基維生素D2 Ercalcidiol (Standard) | 21343-40-8 | 1 mg | 3000元 |
| 2026/06/05 | HY-32349R | 25-羥基維生素D2 Ercalcidiol (Standard) | 21343-40-8 | 5 mg | 8400元 |
| 2026/06/05 | HY-32349 | 25-羥麥角甾醇 Ercalcidiol | 21343-40-8 | 1mg | 1200元 |
常見問題列表
生物活性
Ercalcidiol 是一種 vitamin D2 代謝物，作為 vitamin D 營養(yǎng)狀態(tài)的指標(biāo)。靶點(diǎn)
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Human Endogenous Metabolite
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體外研究
Differentiation between Ercalcidiol (25(OH)D 2 ) and 25(OH)D 3 is important for monitoring vitamin D therapy, as vitamin D 2 is the predominant prescription form. The half-life of Ercalcidiol is shorter than that of 25(OH)D 3 and it binds less well to the vitamin D binding protein, making it less potent and, therefore, required to be administered at much higher doses than vitamin D 3 . Some currently used assays have a diminished capacity to detect Ercalcidiol, which can lead to dangerous overdosing when attempting to monitor therapy with vitamin D 2 .