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40505-76-8

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40505-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40505-76-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,0 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 40505-76:
(7*4)+(6*0)+(5*5)+(4*0)+(3*5)+(2*7)+(1*6)=88
88 % 10 = 8
So 40505-76-8 is a valid CAS Registry Number.

40505-76-8Upstream product

40505-76-8Downstream Products

40505-76-8Relevant articles and documents

Hydromorphone metabolites: Isolation and identification from pooled urine samples of a cancer patient

Zheng,Mcerlane,Ong

, p. 427 - 439 (2002)

1. Hydromorphone-3-glucuronide, dihydromorphine, dihydroisomorphine, dihydromorphine-3-glucuronide and dihydroisomorphine-3-glucuronide were isolated from a cancer patient's urine and identified as metabolites of hydromorphone by comparison with synthetic standards using LC/MS/MS with gradient elution. 2. The relative urinary recovery of dihydroisomorphine-3-glucuronide was estimated to be 17-fold higher than previously reported. 3. Three new metabolites, including hydromorphone-3-sulphate, norhydromorphone and nordihydroisomorphine, were tentatively identified.

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