Welcome to LookChem.com Sign In|Join Free
  • or
Pyrimido[4,5-d]pyrimidine-2,4-diamine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16357-81-6

Post Buying Request

16357-81-6 Suppliers

Recommended suppliers

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

16357-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16357-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,3,5 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16357-81:
(7*1)+(6*6)+(5*3)+(4*5)+(3*7)+(2*8)+(1*1)=116
116 % 10 = 6
So 16357-81-6 is a valid CAS Registry Number.

16357-81-6SDS

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 pyrimido[4,5-d]pyrimidine-2,4-diamine

1.2 Other means of identification

Product number -
Other names 2.4-Diamino-pyrimido<4.5-d>pyrimidin

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:16357-81-6 SDS

16357-81-6Downstream Products

16357-81-6Relevant academic research and scientific papers

Part 4. Fused Pyrimidines. Annelation Using Formamide to Synthesize 2,4-Disubstituted-PyrimidoPyrimidines

Delia, Thomas J.,Niedzinski, Jill

, p. 1421 - 1423 (2007/10/02)

A one-step synthesis of 2,4-disubstituted-pyrimidopyrimidines has been investigated.Cyclization of 6-amino-2,4-disubstituted-pyrimidines with formamide as solvent and reagent affords the title compounds in 50-70percent yield.Strongly electron-donating groups are required.Based on model compounds, a pathway for the cyclization is suggested.The method is an improvement on previous methods of synthesis, albeit a limited one.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 16357-81-6