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1206-23-1

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1206-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1206-23-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,0 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1206-23:
(6*1)+(5*2)+(4*0)+(3*6)+(2*2)+(1*3)=41
41 % 10 = 1
So 1206-23-1 is a valid CAS Registry Number.

1206-23-1Relevant articles and documents

A mild and efficient tetrahydropyranylation of alcohols

Cha, Kyung Hoi,Kang, Tae Won,Lee, Hong-Woo,Kim, Eung-Nam,Choi, Nam-Hee,Kim, Jung-Woo,Hong, Chung Il

, p. 2131 - 2136 (1998)

Triphenylphosphine (TPP)-iodotrimethylsilane (TMSI) was found to be a convenient and highly effective catalyst for the tetrahydropyranylation of aliphatic and aromatic alcohols with dihydropyran in dichloromethane at ambient temperature.

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