Welcome to LookChem.com Sign In|Join Free

CAS

  • or

670-35-9

Post Buying Request

670-35-9 Suppliers

Recommended suppliersmore

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

670-35-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 670-35-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,7 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 670-35:
(5*6)+(4*7)+(3*0)+(2*3)+(1*5)=69
69 % 10 = 9
So 670-35-9 is a valid CAS Registry Number.

670-35-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-bromo-4-methoxy-6-methylpyran-2-one

1.2 Other means of identification

Product number -
Other names 3-Bromo-4-methoxy-6-methyl-2-pyranone

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:670-35-9 SDS

670-35-9Relevant articles and documents

-

Yamada

, p. 1329,1333 (1962)

-

Synthesis of 4-dialkylamino-and 3-halo-6-methyl-4-methoxy-2-pyranones and their 5,6-dihydro derivatives

Lokot,Pashkovskii,Lakhvich

, p. 1350 - 1354 (2007/10/03)

A new procedure has been developed for preparation of 4-dialkylamino-6-methyl-2-pyranones and their 5,6-dihydro analogs by reaction of cyclic amines with 4-chloro- and 4-methoxy-2-pyranones. Chlorine and bromine can be introduced into position 3 of the 2-pyranone and 5,6-dihydro-2-pyranone rings via reaction of 4-methoxy derivatives with N-halosuccinimides. In the presence of two equivalents of N-halosuccinimide 3-halo-4-methoxy-6-methyl-5,6-dihydro-2-pyranone is converted into 3-halo-4-methoxy-6-methyl-2-pyranone.

Functionalization at C-5 and at the C-6 Methyl Group of 4-Methoxy-6-methyl-2-pyrone

Bacardit, R.,Moreno-Manas, M.,Pleixats, R.

, p. 157 - 160 (2007/10/02)

A new entry to C-5 substituted 4-hydroxy-6-methyl-2-pyrones has been achieved.The best conditions to prepare the monobromo and the dibromo derivatives at C-3 and the C-6 methyl group of the title pyrone have been defined.The synthetic applicability of the phosphonium salts at CH3-C-6 of both 4-methoxy-6-methyl-2-pyrone, 5, and dehydroacetic acid, 2, has also been evaluated.

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 670-35-9