41019
熔点标准品 235-237°C
analytical standard
别名:
咖啡因, 1,3,7-三甲基黄嘌呤
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关于此项目
经验公式（希尔记法）:
C8H10N4O2
化学文摘社编号:
分子量:
194.19
UNSPSC Code:
12352210
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-362-1
Beilstein/REAXYS Number:
17705
MDL number:
grade
analytical standard
Quality Segment
shelf life
limited shelf life, expiry date on the label
mp
234-236.5 °C (lit.), 235-237 °C (±0.3°C)
application(s)
food and beverages
pharmaceutical
format
neat
SMILES string
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 key
RYYVLZVUVIJVGH-UHFFFAOYSA-N
Gene Information
human ... ADORA1(134), ADORA2A(135), ADORA2B(136), ADORA3(140)
General description
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.
Application
Caffeine melting point standard 235-237 °C finds its use in the characterization of pure chemicals and pharmaceutical compounds.
Features and Benefits
- 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
Other Notes
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves