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171670-94-3

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171670-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171670-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,6,7 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 171670-94:
(8*1)+(7*7)+(6*1)+(5*6)+(4*7)+(3*0)+(2*9)+(1*4)=143
143 % 10 = 3
So 171670-94-3 is a valid CAS Registry Number.

171670-94-3Downstream Products

171670-94-3Relevant articles and documents

REACTIONS OF PHTHALIMIDOBENZOIC ACID AZIDES WITH TRIMETHYL PHOSPHITE AND TRIS (DIALKYLAMINO) PHOSPHINES

Eldin, Nahed K.

, p. 25 - 30 (2007/10/02)

Trimethyl phosphite (3a) and/or tris (dialkylamino) phosphines (3b, c) react with o-, and m-phthalimidobenzoic acid azides (1a, b) to give the new iminophosphorane derivatives (4a-4f).Possible reaction mechanism are considered and the structural assignments are based on compatible analytical and spectroscopic results.Key words: o- and m-Phthalimidobenzoic acid azides (1a, b), trimethyl phosphite (3a), tris(dialkylamino)phosphines (3b, c) and iminophosphorane derivatives (4a-4f).

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