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21143-00-0

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21143-00-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21143-00-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,4 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21143-00:
(7*2)+(6*1)+(5*1)+(4*4)+(3*3)+(2*0)+(1*0)=50
50 % 10 = 0
So 21143-00-0 is a valid CAS Registry Number.

21143-00-0Downstream Products

21143-00-0Relevant articles and documents

A facile and efficient method for the synthesis of solasodine from diosgenin

Zhang, Gui-Ping,Shen, Si-Da,Lei, Min,Hu, Li-Hong

, p. 5894 - 5896 (2011)

A facile and high-yielding route for the synthesis of solasodine from diosgenin is devised. Ring opening of steroidal spiroketal under mild conditions with trifluoroacetyl trifluoromethanesulfonate (TFAT) provides an applicable protocol to prepare key intermediates 4 or 3-Ac-solasodine, which can potentially serve as a platform for the selective functionalization of C(3)-OH and N-H of solasodine. The simple operations without purification by column chromatography make this method suitable to scale up.

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