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53939-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53939-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53939-81:
154 % 10 = 4
So 53939-81-4 is a valid CAS Registry Number.



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017


1.1 GHS Product identifier

Product name 2-phenylethyl 4-oxopentanoate

1.2 Other means of identification

Product number -
Other names EINECS 258-877-2

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:53939-81-4 SDS

53939-81-4Downstream Products

53939-81-4Relevant articles and documents

Formation of 4-Alkoxy-γ-valerolactones from Levulinic Acid and Alcohols during Storage at Room Temperature

Shu, Chi-Kuen,Lawrence, Brian M.

, p. 782 - 784 (1995)

Levulinic acid (LA) is a flavor ingredient used for many products.During the storage of LA in alcohols at room temperature, chemical changes were observed.Specifically, two groups of compound were formed, esters of LA and 4-alkoxy-γ-valerolactones.All of these compounds were identified by spectral data and synthesis.Mechanistically, it is proposed that the alcohol reacts reversibly either with the keto group of LA to form the ester.All of the data obtained from this study suggest that during the initial stages of storage the reactions are kinetically controlled toform the 4-alkoxy-γ-valerolactone more than the ester; however, as the reactions proceed toward equilibrium, they become thermodynamically controlled to form the ester more than the 4-alkoxy-γ-valerolactone.Keywords: Alkyl levulinates; benzyl levulinate; ethyl levulinate; 2-phenylethyl levulinate; cis-3-hexenyl levulinate; geranyl levulinate; 4-alkoxy-γ-valerolactone; 4-(phenylmethoxy)-γ-valerolactone; 4-ethoxy-γ-valerolactone; 4-(2-phenylethoxy)-γ-valerolactone; 4-(cis-3-hexenoxy)-γ-valerolactone; geranioxy-γ-valerolactone; levulinic acid

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