Welcome to LookChem.com Sign In|Join Free

CAS

  • or

105642-32-8

Post Buying Request

105642-32-8 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

105642-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105642-32-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,6,4 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 105642-32:
(8*1)+(7*0)+(6*5)+(5*6)+(4*4)+(3*2)+(2*3)+(1*2)=98
98 % 10 = 8
So 105642-32-8 is a valid CAS Registry Number.

105642-32-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 5,7-diacetoxy-6,8-bisdiphenylmethyl-2,3-dimethylchromone

1.2 Other means of identification

Product number -
Other names Acetic acid 5-acetoxy-6,8-dibenzhydryl-2,3-dimethyl-4-oxo-4H-chromen-7-yl ester

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:105642-32-8 SDS

105642-32-8Relevant articles and documents

Aromatic Benzhydrylation: Part VII - Synthesis of Benzhydrylated 2,4,6-Trihydroxypropiophenones and 5,7-Dihydroxy-2,3-dimethylchromones

Jain, A. C.,Bambah, P. K.,Misra, S. K.

, p. 478 - 480 (2007/10/02)

2,4,6-Trihydroxypropiophenone (1) reacts with diphenylcarbinol in the presence of BF3.Et2O to give 3,5-bisdiphenylmethyl (2a) and 3-diphenylmethyl (3a) derivatives which on heating with acetic anhydride and sodium acetate followed by hydrolysis afford the corresponding 5,7-dihydroxychromones (4b and 5b respectively).In order to locate the position of diphenylmethyl group in 5b, 2,3-dimethyl-5,7-dihydroxychromone (6) has directly been benzhydrylated to give a mixture of 4b, 5b and its isomer 7b.Comparison of the chemical shifts for 5b and 7b and their acetates leads to the assigned structures.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 105642-32-8