Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1231718-21-0

Post Buying Request

1231718-21-0 Suppliers

Recommended suppliersmore

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

1231718-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1231718-21-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,7,1 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1231718-21:
(9*1)+(8*2)+(7*3)+(6*1)+(5*7)+(4*1)+(3*8)+(2*2)+(1*1)=120
120 % 10 = 0
So 1231718-21-0 is a valid CAS Registry Number.

1231718-21-0Downstream Products

1231718-21-0Relevant articles and documents

Preparation method of thiazepristine sodium

-

Paragraph 0015; 0017; 0019, (2020/12/31)

The invention relates to a preparation method of thiazepine sodium, in particular to a method for efficiently synthesizing thiazepine sodium by taking 3-chloro-6-methyl dibenzo [c, f] [1, 2] thiazepine-11 (6H)-ketone-5, 5-dioxide and 7-amino heptonitrile as raw materials through two steps of reduction reaction and hydrolysis reaction. The preparation method of the thiazepristine sodium provided bythe invention is a preparation method which is high in yield, low in cost, less in three wastes, good in product purity and suitable for industrialization.

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 1231718-21-0