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: 2023-05-04 17:34:39

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	n20/D 1.477
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.