Welcome to LookChem.com Sign In|Join Free

CAS

  • or

151882-81-4

Post Buying Request

151882-81-4 Suppliers

Recommended suppliersmore

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

151882-81-4 Usage

Uses

BTUM is uesed as a dye developer for direct thermal paper.

Check Digit Verification of cas no

The CAS Registry Mumber 151882-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,8,8 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 151882-81:
(8*1)+(7*5)+(6*1)+(5*8)+(4*8)+(3*2)+(2*8)+(1*1)=144
144 % 10 = 4
So 151882-81-4 is a valid CAS Registry Number.

151882-81-4Downstream Products

151882-81-4Relevant articles and documents

A sulfonyl urea, sulfonamide ethyl ester preparation method of compound (by machine translation)

-

Paragraph 0094; 0100-0104; 0110-0115, (2017/08/02)

The description relates to a compound of formula (I) compound of the preparation method, wherein formula (II) with a compound represented by formula (III) as shown in the catalysis of palladium catalyst, under a carbon monoxide atmosphere, reacts in a solvent to obtain the compound. The invention related to the method of the reaction do not require strict-free conditions, does not need a high pressure carbon monoxide atmosphere, convenient and simple to operate, to a functional group and has very high power density and universality, the catalyst consumption is very small, the cost of reaction is very low, and can be widely used for preparing sulfonyl urea compound. R1 - SO2 - NH - CO - X (R3 )n - R2 (I) R1 - SO2 - R4 (II) HX (R3 )n - R2 (III) wherein X is O or N; n is 0 or 1; when X is when O, n=0; when X is when N, n=1; R1 Selected from aryl, heteroaryl, alkyl, alkenyl or alkynyl; R2 Selected from aryl, heteroaryl, alkyl, alkenyl or alkynyl; R3 Is selected from H, R2 , Or R3 And R2 A ring of connection; R4 For N3 Or a halogen atom; when R4 For nails halogen original, system also comprises a sodium azide. (by machine translation)

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 151882-81-4