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Substance Name: Cinnamic acid
RN: 621-82-9
InChIKey: WBYWAXJHAXSJNI-UHFFFAOYSA-N
Classification Codes
- Drug / Therapeutic Agent
- Skin / Eye Irritant
Molecular Formula
- C9-H8-O2
Molecular Weight
- 148.1602
- All
- Links to Resources
- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
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Names and Synonyms
Name of Substance
- Cinnamic acid
Synonyms
- 2-Propenoic acid, 3-phenyl-
- 3-Phenyl-2-propenoic acid
- 3-Phenylacrylic acid
- 3-Phenylpropenoic acid
- Acidum cinnamylicum
- AI3-00891
- Benzenepropenoic acid
- Benzylideneacetic acid
- beta-Phenylacrylic acid
- BRN 0507757
- Cinnamic acid
- Cinnamic acid (natural)
- Cinnamylic acid
- EINECS 210-708-3
- FEMA No. 2288
- Kyselina skoricove
- Kyselina skoricove [Czech]
- NSC 623441
- NSC 9189
- Phenylacrylic acid
- Zimtsaeure
- Zimtsaeure [German]
Systematic Names
- 2-Propenoic acid, 3-phenyl-
- Cinnamic acid
Superlist Name
- Cinnamic acid
Registry Numbers
CAS Registry Number
- 621-82-9
Related Registry Numbers
- 16089-48-8 (potassium salt)
- 538-42-1 (hydrochloride salt)
- 63938-16-9 (nickel(+2) salt)
System Generated Number
- 0000621829
Structure Descriptors
InChI
InChI=1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)InChIKey
WBYWAXJHAXSJNI-UHFFFAOYSA-NSmiles
OC(=O)Toxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| guinea pig | LDLo | oral | > 5gm/kg (5000mg/kg) | Voprosy Pitaniya. Problems of Nutrition. Vol. 33(5), Pg. 48, 1974. | |
| mouse | LD50 | intraperitoneal | 160mg/kg (160mg/kg) | Food and Cosmetics Toxicology. Vol. 16, Pg. 687, 1978. | |
| mouse | LD50 | intravenous | 380mg/kg (380mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 19, Pg. 617, 1969. | |
| mouse | LD50 | oral | 5gm/kg (5000mg/kg) | Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 46(1), Pg. 94, 1981. | |
| rat | LD50 | intraperitoneal | 1600mg/kg (1600mg/kg) | Bollettino Chimico Farmaceutico. Vol. 112, Pg. 53, 1973. | |
| rat | LD50 | oral | 2500mg/kg (2500mg/kg) | Food and Cosmetics Toxicology. Vol. 16, Pg. 687, 1978. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Melting Point | 133 | deg C | EXP | |
| Boiling Point | 300 | deg C | EXP | |
| pKa Dissociation Constant | 4.44 | (none) | 25 | EXP |
| log P (octanol-water) | 2.13 | (none) | EXP | |
| Water Solubility | 570 | mg/L | 25 | EXP |
| Henry's Law Constant | 1.71E-08 | atm-m3/mole | 25 | EST |
| Atmospheric OH Rate Constant | 2.21E-11 | cm3/molecule-sec | 25 | EST |
Physical property data is provided to ChemIDplus by SRC, Inc.