41019

熔点标准品 235-237°C

analytical standard

• 同義詞: 咖啡因, 1,3,7-三甲基黄嘌呤
• 經驗公式（希爾表示法）: C₈H₁₀N₄O₂
• CAS號碼: 58-08-2
• 分子量：: 194.19
• Beilstein: 17705
• EC號碼: 200-362-1
• MDL號碼: MFCD00005758
• 分類程式碼代碼: 12352210
• PubChem物質ID: 329756046
• NACRES: NA.24

屬性

• 等級: analytical standard
• 品質等級: 100
• 儲存期限: limited shelf life, expiry date on the label
• mp: 234-236.5 °C (lit.); 235-237 °C (±0.3°C)
• 應用: food and beverages; pharmaceutical
• 格式: neat
• SMILES 字串: CN1C(=O)N(C)c2ncn(C)c2C1=O
• InChI: 1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
• InChI 密鑰: RYYVLZVUVIJVGH-UHFFFAOYSA-N
• 基因資訊: human ... ADORA1(134) , ADORA2A(135) , ADORA2B(136) , ADORA3(140)

描述

一般說明

Melting point standard 235-237 °C, caffeine is useful to calibrate melting point instruments, in the thermodynamic mode of measurement. The value of its melting point is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.

應用

Caffeine melting point standard 235-237 °C finds its use in the characterization of pure chemicals and pharmaceutical compounds.

特點和優勢

• Melting point calibration standard traceable to primary standards (LGC, London)
• Grade: Analytical Standard
• Standard deviation up to ± 0.3 °C
• Provided with certificates of analysis and safety data sheet

推薦產品

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安全資訊

• 象形圖: GHS07
• 訊號詞: Warning
• 危險聲明: H302
• 防範說明: P264 - P270 - P301 + P312 - P501
• 危險分類: Acute Tox. 4 Oral
• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable
• 個人防護裝備: dust mask type N95 (US), Eyeshields, Faceshields, Gloves