The determination of melting point largely depends on testing conditions, such as equipment type, the rate of temperature increase, the diameter of the glass tube, etc. These products are not tested for melting point. These products are from different brands and melting point values are taken from different literature sources.
8.22029
3,4-Dihydroxycinnamic acid
for synthesis
Synonym(s):
3,4-Dihydroxycinnamic acid, Caffeic acid
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
Linear Formula:
(OH)2C6H3CHCHCOOH
CAS Number:
Molecular Weight:
180.16
UNSPSC Code:
12352106
EC Index Number:
206-361-2
NACRES:
NA.22
MDL number:
Pricing and availability is not currently available.
Quality Level
assay
≥98.0% (HPLC)
form
powder
mp
234-237 °C (decomposition)
storage temp.
2-30°C
SMILES string
Oc1c(ccc(c1)\C=C/C(=O)O)O
InChI
1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2-
InChI key
QAIPRVGONGVQAS-RQOWECAXSA-N
Analysis Note
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Identity (IR): passes test
Identity (IR): passes test
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form - |
| assay ≥98.0% (HPLC) | assay - | assay 99% | assay ≥95.0% (HPLC) |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. - | storage temp. - |
| mp 234-237 °C (decomposition) | mp 215-220 °C | mp 181-183 °C (lit.) | mp - |
signalword
Warning
hcodes
Hazard Classifications
Carc. 2
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 8220290010 | 04022536482293 |
| 8220290000 | 04022536482286 |
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Why are the melting points of caffeic acid 8220290010 (listed as 3,4-dihydroxycinnamic acid) and caffeic acid C0625 so different? They are both listed as >98% (HPLC).
1 answer-
Helpful?
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