Welcome to LookChem.com Sign In|Join Free

CAS

  • or

521925-06-4

Post Buying Request

521925-06-4 Suppliers

Recommended suppliersmore

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

521925-06-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 521925-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,1,9,2 and 5 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 521925-06:
(8*5)+(7*2)+(6*1)+(5*9)+(4*2)+(3*5)+(2*0)+(1*6)=134
134 % 10 = 4
So 521925-06-4 is a valid CAS Registry Number.

521925-06-4Downstream Products

521925-06-4Relevant articles and documents

Preparation method of (1S, 4R)-1-methyl-4-(1-methylvinyl)-2-cyclohexene-1-ol

-

Paragraph 0083-0084; 0099-0100; 0104-0105; 0109-0110; 0114, (2021/04/17)

The invention relates to a preparation method of (1S, 4R)-1-methyl-4-(1-methylvinyl)-2-cyclohexene-1-ol, and belongs to the technical field of organic solvents. The preparation method comprises the following steps: reacting limonene with a halogenating reagent to obtain an intermediate shown in a formula (1), then reacting the intermediate shown in the formula (1) with a tertiary amine compound to obtain an intermediate shown in a formula (2), and finally carrying out a pyrolysis elimination reaction on the intermediate shown in the formula (2) to obtain (1S, 4R)-1-methyl-4-(1-methylvinyl)-2-cyclohexene-1-ol. The preparation method has the advantages of mild conditions, no need of an oxidation process of hydrogen peroxide with high preparation condition requirements and high safety risk, no need of an expensive catalyst, high yield, high product purity, simple steps, and suitableness for industrial production.

Isolation and identification of terpene chlorohydrins found in cold-pressed orange oil

Weiss, Eve R.,Pika, Jana,Braddock, Robert J.

, p. 2277 - 2282 (2007/10/03)

Three terpene chlorohydrins found in cold-pressed orange oil were concentrated by silica adsorption chromatography and purified by preparative HPLC. Formation of these chlorohydrins was determined to be the result of a reaction of d-limonene, the major component of cold-pressed oil, with hypochlorous acid, found in chlorinated treatment water used in the oil recovery process. NMR analyses indicated that the major chlorohydrin present was the diequatorially substituted (1R,2R,4R)-2-chloro-8-p-menthen-1-ol (1). The other two compounds were the diaxial trans stereoisomer, (1S,2S,4R)-2-chloro-8-p-menthen-1-ol (2), and the dichlorohydrin, (1R,2R,4R)-2,9-dichloro-8-p-menthen-1-ol (3).

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 521925-06-4