TRANS-(+)-CHRYSANTHEMIC ACID
- CAS NO.：4638-92-0
- Empirical Formula: C10H16O2
- Molecular Weight: 168.23
- MDL number: MFCD01941572
- EINECS: 225-067-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:29
What is TRANS-(+)-CHRYSANTHEMIC ACID?
Chemical properties
clear colorless to yellow liquid
The Uses of TRANS-(+)-CHRYSANTHEMIC ACID
(+)-trans-Chrysanthemic Acid is a reactant in the synthesis of (1R,3R)-[2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl]methyl (R)-2-acetoxy-3-methylbutanoate, the sex pheromone of Pseudococcus calceolariae, the citrophilous mealybug
The Uses of TRANS-(+)-CHRYSANTHEMIC ACID
(+)-trans-Chrysanthemic acid may be used in the preparation of (+)-trans-pyrethric acid, a building block for rethrin II.
Definition
ChEBI: (+)-trans-chrysanthemic acid is a trans-chrysanthemic acid in which both stereocentres have R configuration. It is functionally related to a (R,R)-chrysanthemal. It is a conjugate acid of a (R,R)-chrysanthemate. It is an enantiomer of a (-)-trans-chrysanthemic acid.
General Description
(+)-trans-Chrysanthemic acid is the acidic component of synthetic pyrethroid insecticides. It can be prepared from (+)-Δ3-carene.
Properties of TRANS-(+)-CHRYSANTHEMIC ACID
| Melting point: | 17-21 °C |
| Boiling point: | 255.81°C (rough estimate) |
| alpha | D25 +14.16° (c = 1.554 in abs alc) |
| Density | 0.9934 (rough estimate) |
| refractive index | n |
| storage temp. | 0-6°C |
| form | Liquid |
| pka | 4.90±0.33(Predicted) |
| color | Clear colorless to yellow |
| optical activity | [α]/D +14±1°, c = 2% in ethanol |
| BRN | 4904351 |
| CAS DataBase Reference | 4638-92-0 |
| EPA Substance Registry System | Cyclopropanecarboxylic acid, 2,2-dimethyl-3-(2-methyl-1-propenyl)-, (1R,3R)- (4638-92-0) |
Safety information for TRANS-(+)-CHRYSANTHEMIC ACID
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for TRANS-(+)-CHRYSANTHEMIC ACID
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