Welcome to LookChem.com Sign In|Join Free

CAS

  • or

133885-11-7

Post Buying Request

133885-11-7 Suppliers

Recommended suppliersmore

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

133885-11-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133885-11-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,8 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133885-11:
(8*1)+(7*3)+(6*3)+(5*8)+(4*8)+(3*5)+(2*1)+(1*1)=137
137 % 10 = 7
So 133885-11-7 is a valid CAS Registry Number.

133885-11-7Downstream Products

133885-11-7Relevant articles and documents

A Selectivity Study of Activated Ketal Reduction with Borane Dimethyl Sulfide

Bartels, Birgit,Hunter, Roger

, p. 6756 - 6765 (2007/10/02)

A chemo- and regioselectivity study of the reagent combination BH3*SMe2/TMSOTf for ketal reduction has been undertaken.It has revealed that simple 1,3-dioxanes reduce cleanly at low temperature in CH2Cl2 while simple 1,3-dioxolanes may give complete ring cleavage and dimerization products.A study of reduction of 4-substituted 1,3-dioxolanes has revealed a solvent-directed regioselectivity which in THF favors the secondary protected derivative.A mechanism is postulated to account for the selectivities based on recent thinking on acetal substitution reactions.

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 133885-11-7