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21858-63-9

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21858-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21858-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21858-63:
(7*2)+(6*1)+(5*8)+(4*5)+(3*8)+(2*6)+(1*3)=119
119 % 10 = 9
So 21858-63-9 is a valid CAS Registry Number.

21858-63-9Upstream product

21858-63-9Downstream Products

21858-63-9Relevant articles and documents

ALKALOIDS OF Korolkowia sewerzowii. STRUCTURE OF KORSELIDINE

Samikov, K.,Shakirov, R.,Yunusov, S. Yu.

, p. 28 - 30 (2007/10/02)

Two new alkaloids have been isolated from the combined alkaloids of the epigeal part of Korolkowia sewerzowii Regel.: a base with mp 272-274 deg C (methanol) and the alkaloid korselidine.As a result of a study of the chemical and physical properties of the alkaloid itself and of the products of its transformation, the structure and partial configuration of 3β, 6β, 20β-trihydroxy-27α-methylcevanine has been established for korselidine.

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