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64923-06-4

64923-06-4

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64923-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64923-06-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,2 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 64923-06:
(7*6)+(6*4)+(5*9)+(4*2)+(3*3)+(2*0)+(1*6)=134
134 % 10 = 4
So 64923-06-4 is a valid CAS Registry Number.

64923-06-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name D-p-hydroxyphenylglycine o-toluenesulfonate

1.2 Other means of identification

Product number -
Other names -

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:64923-06-4 SDS

64923-06-4Downstream Products

64923-06-4Relevant articles and documents

Asymmetric Transformation of DL-p-Hydroxyphenylglycine by a Combination of Preferential Crystallization and Simultaneous Racemization of the o-Toluenesulfonate

Hongo, Chikara,Tohyama, Masanori,Yoshioka, Ryuzoki,Yamada, Shigeki,Chibata, Ichiro

, p. 433 - 436 (1985)

The asymmetric transformation of DL-p-hydroxyphenylglycine was achieved between two enantiomers by a combination of preferential crystallization of desired enantiomer of p-hydroxyphenylglycine o-toluenesulfonate (HPG.o-Ts) and the simultaneous racemization of the antipode.L-HPG.o-TS was easily racemized by heating at 100 deg C in aqueous 95percent (v/v) acetic acid in the presence of small amounts of salicylaldehyde and free DL-HPG.A supersaturated solution of DL-HPG.o-TS placed under such conditions for racemization was seeded with the crystals of D-HPG.o-TS, and added with DL-HPG and o-toluenesulfonic acid in order to provide contonously the supersaturated of DL-HPG.o-TS as a driving force.As a result, 77.2percent of DL-HPG added was transformed to D-isomer.

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