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Check Digit Verification of cas no

The CAS Registry Mumber 14738-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,7,3 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 14738-99:
(7*1)+(6*4)+(5*7)+(4*3)+(3*8)+(2*9)+(1*9)=129
129 % 10 = 9
So 14738-99-9 is a valid CAS Registry Number.

14738-99-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	2-methyl-4-methylidene-1,3-dioxolane

1.2 Other means of identification

Product number	-
Other names	2-Methyl-4-methylene-1,3-dioxolane

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:14738-99-9 SDS

14738-99-9Upstream product

4469-50-5 4-chloromethyl-2-methyl-[1,3]dioxolane

14738-99-9Downstream Products

14738-99-9Relevant academic research and scientific papers

METHOD FOR PRODUCING METHYLENE-1,3-DIOXOLANES

-

Paragraph 0051; 0052; 0053; 0054; 0060; 0061; 0062; 0063, (2015/01/07)

The present invention relates to a novel method for preparing methylene-1,3-dioxolanes of the general formula (1) in which R1 and R2 have the meanings stated in the description. Methylene-1,3-dioxolanes are important intermediates for preparing pyrazoles and anthranilic acid amides, which may be used as insecticides.

Fragmentation of Cyclic Carboxonium Ions, IV. - Synthesis of β-Oxa-γ, δ-enones

Mattay, Jochen,Thuenker, Walter,Scharf, Hans-Dieter

, p. 1105 - 1117 (2007/10/02)

The proton-catalyzed fragmentation of 4-methylene-1,3-dioxolanes 2 by weak acids (pK > 4.3) or weak acidic ion exchangers leads in good yields to β-oxa-γ, δ-enones 5 which are thus easily and generally available for the first time.

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