Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1558054-04-8

Post Buying Request

1558054-04-8 Suppliers

Recommended suppliersmore

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

1558054-04-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1558054-04-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,8,0,5 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1558054-04:
(9*1)+(8*5)+(7*5)+(6*8)+(5*0)+(4*5)+(3*4)+(2*0)+(1*4)=168
168 % 10 = 8
So 1558054-04-8 is a valid CAS Registry Number.

1558054-04-8Relevant articles and documents

Total synthesis of calothrixin B and its analogs

Saravanan, Velu,Muthu Ramalingam, Bose,Mohanakrishnan, Arasambattu K.

, p. 1266 - 1279 (2014/03/21)

The total synthesis of calothrixin B and its analogs was achieved starting from 2-methylindole. The synthesis involved an electrocyclization of 2-nitroarylvinyl-3-phenylsulfonylvinylindoles as a key step to give 2-nitroaryl-4-methoxy-3-methylcarbazoles. Oxidation of these compounds followed by reductive cyclization led to N-phenylsulfonylquinocarbazoles. These quinocarbazoles underwent hydrolysis and aerial oxidation in one pot to give the target compounds. A linear synthesis of calothrixin B and its analogs has been established from commercially available 2-methylindole. The thermal electrocyclization of 2-nitroarylvinyl-3-phenylsulfonylindole was a key step in the synthesis. The synthesis of calothrixin B and its analogs was achieved in 12-22 % overall yield over twelve steps. Copyright

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 1558054-04-8