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Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
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I0250

Sigma-Aldrich

咪唑

≥99% (titration), crystalline

别名:

1,3-二氮杂-2,4-环戊二烯, 甘恶啉

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1 EA
¥23,162.25

¥23,162.25

预计发货时间2025年4月27日详情

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1 EA
¥23,162.25

About This Item

经验公式（希尔记法）:
C3H4N2
CAS号:
288-32-4
分子量:
68.08
Beilstein:
103853
EC 号:
206-019-2
MDL编号:
MFCD00005183
UNSPSC代码:
12352005
eCl@ss:
39161001
PubChem化学物质编号:
24895898
NACRES:
NA.25

¥23,162.25

预计发货时间2025年4月27日详情

获取大包装报价

蒸汽压

<1 mmHg ( 20 °C)

质量水平

300

方案

≥99% (titration)

表单

crystalline

杂质

≤0.005% Fluorescence blank (β-NADH equivalence.)

颜色

white

pH值（酸碱度）

6.2-7.8 (25 °C)

pKa (25 °C)

6.95

沸点

256 °C (lit.)

mp

88-91 °C (lit.)

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583585794058345
SUPELCOSIL&#8482; LC-18-DB HPLC Column 5&#160;&#956;m particle size, L × I.D. 25&#160;cm × 4.6&#160;mm

58355U

SUPELCOSIL™ LC-18-DB HPLC Column

SUPELCOSIL&#8482; LC-18-DB HPLC Column 5&#160;&#956;m particle size, L × I.D. 25&#160;cm × 10&#160;mm

58358

SUPELCOSIL™ LC-18-DB HPLC Column

SUPELCOSIL&#8482; LC-18-DB HPLC Column 5&#160;&#956;m particle size, L × I.D. 25&#160;cm × 2.1&#160;mm

57940

SUPELCOSIL™ LC-18-DB HPLC Column

SUPELCOSIL&#8482; LC-18-DB HPLC Column 5&#160;&#956;m particle size, L × I.D. 5&#160;cm × 4.6&#160;mm

58345

SUPELCOSIL™ LC-18-DB HPLC Column

separation technique

reversed phase

separation technique

reversed phase

separation technique

reversed phase

separation technique

reversed phase

matrix

silica gel, spherical particle platform, fully porous particle

matrix

silica gel, spherical particle platform

matrix

silica gel, spherical particle platform

matrix

silica gel, spherical particle platform

matrix active group

C18 (octadecyl) phase

matrix active group

C18 (octadecyl) phase

matrix active group

C18 (octadecyl) phase

matrix active group

C18 (octadecyl) phase

particle size

5 μm

particle size

5 μm

particle size

5 μm

particle size

5 μm

agency

suitable for USP L1

agency

suitable for USP L1

agency

suitable for USP L1

agency

suitable for USP L1

technique(s)

HPLC: suitable

technique(s)

HPLC: suitable

technique(s)

HPLC: suitable

technique(s)

HPLC: suitable

应用

特别适用于 pH 6.2-7.8 范围内的缓冲液

警示用语：

Danger

危险声明

H302,H314,H360D

危险分类

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C

储存分类代码

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

闪点(°F)

293.0 °F - closed cup

闪点(°C)

145 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    0000439149
    0000439149
    0000435297
    0000435297
    0000436299

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    实验方案

    Sildenafil Citrate USP Method Using HPTLC Plates for the Limit of Imidazole Test

    In the present study we demonstrate compliance of silica gel 60 F254 HPTLC plates with USP requirements, and how HPTLC plates are suitable for the Sildenafil citrate-Limit of Imidazole test.

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    了解生产规模的高纯度生物学缓冲液通过我们专业制造溶液，确保稳定性、pH控制和稳定供应。

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